Fighters
All Divisions
Flyweight
Bantamweight
Featherweight
Lightweight
Welterweight
Middleweight
Light Heavyweight
Heavyweight
Women's Strawweight
Women's Flyweight
Women's Bantamweight
| Name | Nickname | Division | Record | Status |
|---|---|---|---|---|
| AJ Dobson | Middleweight | 7-3-0 (W-L-D) | Active | |
| AJ Fletcher | “The Ghost” | Welterweight | 10-3-0 (W-L-D) | Active |
| Aaron Pico | Featherweight | 14-5-0 (W-L-D) | Active | |
| Abdul Azeem Badakhshi | Featherweight | 13-3-0 (W-L-D) | Active | |
| Abdul Hussein | “King” | Bantamweight | 15-2-0 (W-L-D) | Active |
| Abdul Rakhman Yakhyaev | “The Hunter” | Light Heavyweight | 10-0-0 (W-L-D) | Active |
| Abdul-Kareem Al-Selwady | “Pride of Palestine” | Lightweight | 16-4-0 (W-L-D) | Active |
| Abubakar Nurmagomedov | Welterweight | 17-4-1 (W-L-D) | Active | |
| Abubakar Vagaev | Welterweight | 24-4-0 (W-L-D) | Active | |
| Abus Magomedov | Middleweight | 29-7-1 (W-L-D) | Active | |
| Adrian Yanez | Bantamweight | 18-6-1 (W-L-D) | Active | |
| Adrián Luna Martinetti | Bantamweight | 17-2-0 (W-L-D) | Active | |
| Aiemann Zahabi | “Icemann” | Bantamweight | 14-3-0 (W-L-D) | Active |
| Ailin Perez | “Fiona” | Women's Bantamweight | 13-2-0 (W-L-D) | Active |
| Al Iaquinta | “Raging” | Lightweight | 14-7-1 (W-L-D) | Active |
| Alatengheili | “The Mongolian Knight” | Bantamweight | 17-10-2 (W-L-D) | Active |
| Albert Duraev | Middleweight | 16-5-0 (W-L-D) | Active | |
| Alberto Montes | “The Promise” | Featherweight | 12-1-0 (W-L-D) | Active |
| Alden Coria | “Cobra” | Flyweight | 13-3-0 (W-L-D) | Active |
| Aleksa Camur | Light Heavyweight | 6-3-0 (W-L-D) | Active | |
| Aleksandar Rakić | “Rocket” | Light Heavyweight | 14-6-0 (W-L-D) | Active |
| Aleksandre Topuria | “El Conquistador” | Bantamweight | 7-1-0 (W-L-D) | Active |
| Alessandro Costa | “Nono” | Flyweight | 17-5-0 (W-L-D) | Active |
| Alex Gilpin | Featherweight | 11-1-0 (W-L-D) | Active | |
| Alex Pereira | “Poatan” | Heavyweight | 13-4-0 (W-L-D) | Active |
| Alex Perez | Flyweight | 26-10-0 (W-L-D) | Active | |
| Alex Reyes | “The Executioner” | Lightweight | 13-5-0 (W-L-D) | Active |
| Alexa Grasso | Women's Flyweight | 17-5-1 (W-L-D) | Active | |
| Alexander Hernandez | “El Gran Chango” | Lightweight | 18-9-0 (W-L-D) | Active |
| Alexander Soldatkin | Heavyweight | 14-4-0 (W-L-D) | Active | |
| C Alexander Volkanovski | “The Great” | Featherweight | 28-4-0 (W-L-D) | Active |
| Alexander Volkov | “Drago” | Heavyweight | 40-11-0 (W-L-D) | Active |
| Alexandre Pantoja | “The Cannibal” | Flyweight | 30-6-0 (W-L-D) | Active |
| Alexia Thainara | “Burguesinha” | Women's Strawweight | 14-1-0 (W-L-D) | Active |
| Aliaskhab Khizriev | “Black Wolf” | Middleweight | 14-0-0 (1 NC) | Active |
| Alibi Idiris | Flyweight | 11-1-0 (W-L-D) | Active | |
| Alice Ardelean | Women's Strawweight | 12-7-0 (W-L-D) | Active | |
| Alice Pereira | “Golden Girl” | Women's Bantamweight | 7-1-0 (W-L-D) | Active |
| Aljamain Sterling | “Funk Master” | Featherweight | 26-5-0 (W-L-D) | Active |
| Allan Begosso | “Mini” | Bantamweight | 7-2-1 (W-L-D) | Active |
| Allan Nascimento | “Puro Osso” | Flyweight | 22-7-0 (W-L-D) | Active |
| Allen Frye Jr. | “AJ” | Heavyweight | 6-1-0 (W-L-D) | Active |
| Alonzo Menifield | “Atomic” | Light Heavyweight | 18-6-1 (W-L-D) | Active |
| Alvin Hines | “Goozie” | Heavyweight | 7-2-0 (W-L-D) | Active |
| Amanda Lemos | Women's Strawweight | 15-6-1 (W-L-D) | Active | |
| Amanda Nunes | “The Lioness” | Women's Bantamweight | 23-5-0 (W-L-D) | Active |
| Amanda Ribas | Women's Strawweight | 13-7-0 (W-L-D) | Active | |
| Amir Albazi | “The Prince” | Flyweight | 17-3-0 (W-L-D) | Active |
| Amiran Gogoladze | Welterweight | 14-3-0 (W-L-D) | Active | |
| Anderson Berinja | Bantamweight | 0-0-0 (W-L-D) | Active | |
| Andre Fialho | Welterweight | 16-8-0 (W-L-D) | Active | |
| Andre Fili | “Touchy” | Featherweight | 25-14-0 (W-L-D) | Active |
| Andre Lima | “Mascote” | Flyweight | 11-1-0 (W-L-D) | Active |
| Andre Petroski | Middleweight | 13-7-0 (W-L-D) | Active | |
| Andrey Pulyaev | Middleweight | 10-3-0 (W-L-D) | Active | |
| Angel Pacheco | Bantamweight | 7-4-0 (W-L-D) | Active | |
| Angela Hill | “Overkill” | Women's Strawweight | 19-16-0 (W-L-D) | Active |
| Anna Melisano | “Bandana” | Women's Flyweight | 6-2-0 (W-L-D) | Active |
| Anshul Jubli | “King of Lions” | Lightweight | 7-2-0 (W-L-D) | Active |
| Ante Delija | “Walking Trouble” | Heavyweight | 26-8-0 (W-L-D) | Active |
| Anthony Hernandez | “Fluffy” | Middleweight | 15-3-0 (W-L-D) | Active |
| Anthony Romero | Lightweight | 8-0-0 (W-L-D) | Active | |
| Anton Turkalj | “The Pleasure Man” | Light Heavyweight | 8-4-0 (W-L-D) | Active |
| Anvar Boynazarov | Featherweight | 3-1-0 (W-L-D) | Active | |
| Aoriqileng | “The Mongolian Murderer” | Bantamweight | 26-12-0 (W-L-D) | Active |
| Arman Tsarukyan | “Ahalkalakets” | Lightweight | 23-3-0 (W-L-D) | Active |
| Arnold Allen | “Almighty” | Featherweight | 21-4-0 (W-L-D) | Active |
| Artem Vakhitov | Light Heavyweight | 3-1-0 (W-L-D) | Active | |
| Artur Minev | “Headhunter” | Lightweight | 7-1-0 (W-L-D) | Active |
| Ashley Yoder | “Spider Monkey” | Women's Strawweight | 8-9-0 (W-L-D) | Active |
| Asikeerbai Jinensibieke | Lightweight | 0-0-0 (W-L-D) | Active | |
| Asu Almabayev | “Zulfikar” | Flyweight | 24-3-0 (W-L-D) | Active |
| Ateba Gautier | “The Storm” | Middleweight | 11-1-0 (W-L-D) | Active |
| Austin Bashi | Featherweight | 14-2-0 (W-L-D) | Active | |
| Austin Lingo | “Lights Out” | Featherweight | 9-3-0 (W-L-D) | Active |
| Austin Tweedy | “The Flash” | Lightweight | 8-2-0 (W-L-D) | Active |
| Austin Vanderford | Welterweight | 13-3-0 (W-L-D) | Active | |
| Axel Sola | Lightweight | 11-1-1 (W-L-D) | Active | |
| Azamat Bekoev | “Iron” | Middleweight | 20-5-0 (W-L-D) | Active |
| Azamat Murzakanov | “Professional” | Light Heavyweight | 16-1-0 (W-L-D) | Active |
| Baisangur Susurkaev | “The Real Hunter” | Middleweight | 12-0-0 (W-L-D) | Active |
| Bassil Hafez | “The Habibi” | Welterweight | 9-4-1 (W-L-D) | Active |
| Bekzat Almakhan | “The Turan Warrior” | Bantamweight | 12-4-0 (W-L-D) | Active |
| Belal Muhammad | “Remember The Name” | Welterweight | 24-6-0 (W-L-D) | Active |
| Benardo Sopaj | “Lion King” | Bantamweight | 13-3-0 (W-L-D) | Active |
| Beneil Dariush | Lightweight | 23-8-1 (W-L-D) | Active | |
| Benoît Saint Denis | “God of War” | Lightweight | 17-4-0 (W-L-D) | Active |
| Bia Mesquita | “The Lady GOAT” | Women's Bantamweight | 8-0-0 (W-L-D) | Active |
| Billy Elekana | “Son of Susie” | Light Heavyweight | 10-2-0 (W-L-D) | Active |
| Billy Pasulatan | Flyweight | 10-3-0 (W-L-D) | Active | |
| Billy Quarantillo | Lightweight | 18-7-0 (W-L-D) | Active | |
| Billy Ray Goff | Welterweight | 9-4-0 (W-L-D) | Active | |
| Blood Diamond | Welterweight | 3-3-0 (W-L-D) | Active | |
| Bo Nickal | Middleweight | 9-1-0 (W-L-D) | Active | |
| Bogdan Grad | “The Unleashed” | Featherweight | 15-4-0 (W-L-D) | Active |
| Bogdan Guskov | “Hitman” | Light Heavyweight | 18-3-1 (W-L-D) | Active |
| Bolaji Oki | “Zulu Warrior” | Lightweight | 10-4-0 (W-L-D) | Active |
| Brad Tavares | Middleweight | 21-13-0 (W-L-D) | Active | |
| Brando Pericic | “The Balkan Bear” | Heavyweight | 7-1-0 (W-L-D) | Active |
| Brandon Moreno | “The Assassin Baby” | Flyweight | 23-10-2 (W-L-D) | Active |
| Brandon Royval | “Raw Dawg” | Flyweight | 18-9-0 (W-L-D) | Active |
| Brandon Sayles | Heavyweight | 5-1-0 (W-L-D) | Active | |
| Brendan Allen | “All In” | Middleweight | 27-7-0 (W-L-D) | Active |
| Brendson Ribeiro | “The Gorilla” | Light Heavyweight | 17-10-0 (W-L-D) | Active |
| Brian Ortega | “T-City” | Featherweight | 16-5-0 (W-L-D) | Active |
| Brunno Ferreira | “The Hulk” | Middleweight | 15-4-0 (W-L-D) | Active |
| Bruno Lopes | “The Brazilian Cowboy” | Light Heavyweight | 14-3-0 (W-L-D) | Active |
| Bruno Oliveira | Light Heavyweight | 8-2-0 (W-L-D) | Active | |
| Bruno Silva | “Bulldog” | Flyweight | 15-9-2 (W-L-D) | Active |
| Bryan Barberena | “Bam Bam” | Middleweight | 18-12-0 (W-L-D) | Active |
| Bryce Mitchell | “Thug Nasty” | Bantamweight | 19-4-0 (W-L-D) | Active |
| Caio Borralho | “The Natural” | Middleweight | 18-2-0 (W-L-D) | Active |
| Calvin Kattar | Featherweight | 23-10-0 (W-L-D) | Active | |
| Cam Rowston | Middleweight | 15-3-0 (W-L-D) | Active | |
| Cameron Saaiman | “MSP” | Bantamweight | 9-3-0 (W-L-D) | Active |
| Carl Deaton | “The Anishinaabe Kid” | Lightweight | 17-7-0 (W-L-D) | Active |
| Carli Judice | “Crispy” | Women's Strawweight | 6-2-0 (W-L-D) | Active |
| Carlos Candelario | “The Cannon” | Flyweight | 8-3-0 (W-L-D) | Active |
| Carlos Leal | “The Lion” | Welterweight | 23-7-0 (W-L-D) | Active |
| Carlos Prates | “The Nightmare” | Welterweight | 24-7-0 (W-L-D) | Active |
| C Carlos Ulberg | “Black Jag” | Light Heavyweight | 15-1-0 (W-L-D) | Active |
| Carlos Vera | “Pequeno” | Bantamweight | 12-4-0 (W-L-D) | Active |
| Carol Foro | Women's Strawweight | 9-1-0 (W-L-D) | Active | |
| Casey Kenney | Bantamweight | 16-4-1 (W-L-D) | Active | |
| Casey O'Neill | “King” | Women's Flyweight | 11-2-0 (W-L-D) | Active |
| Ce Liu | Light Heavyweight | 0-0-0 (W-L-D) | Active | |
| Cesar Almeida | “Cesinha” | Middleweight | 7-3-0 (W-L-D) | Active |
| Cezary Oleksiejczuk | Middleweight | 17-3-0 (W-L-D) | Active | |
| Chad Anheliger | “The Monster” | Bantamweight | 13-8-0 (W-L-D) | Active |
| Chad Hanekom | Middleweight | 9-3-0 (W-L-D) | Active | |
| Chan Sung Jung | “The Korean Zombie” | Featherweight | 17-8-0 (W-L-D) | Active |
| Chandler Cole | Heavyweight | 10-4-0 (W-L-D) | Active | |
| ChangHo Lee | Bantamweight | 11-2-0 (W-L-D) | Active | |
| Charles Johnson | “Inner G” | Flyweight | 19-9-0 (W-L-D) | Active |
| Charles Jourdain | “Air” | Bantamweight | 18-8-1 (W-L-D) | Active |
| Charles Oliveira | “Do Bronxs” | Lightweight | 37-11-0 (W-L-D) | Active |
| Charles Radtke | “Chuck Buffalo” | Welterweight | 12-5-0 (W-L-D) | Active |
| Charles Rosa | “Boston Strong” | Featherweight | 14-8-0 (W-L-D) | Active |
| Charlie Campbell | “The Cannibal” | Lightweight | 9-3-0 (W-L-D) | Active |
| Chase Hooper | “The Dream” | Lightweight | 17-5-1 (W-L-D) | Active |
| Chase Waldon | Middleweight | 11-2-0 (W-L-D) | Active | |
| Chelsea Chandler | Women's Bantamweight | 7-4-0 (W-L-D) | Active | |
| Chelsea Hackett | Women's Flyweight | 3-1-1 (W-L-D) | Active | |
| Chepe Mariscal | “Machine Gun” | Featherweight | 18-7-0 (W-L-D) | Active |
| Chidi Njokuani | “Bang Bang” | Welterweight | 25-12-0 (W-L-D) | Active |
| Chris Birchler | Light Heavyweight | 7-4-0 (W-L-D) | Active | |
| Chris Curtis | “Action-Man” | Welterweight | 32-13-0 (1 NC) | Active |
| Chris Daukaus | Light Heavyweight | 12-7-0 (W-L-D) | Active | |
| Chris Duncan | “The Problem” | Lightweight | 15-3-0 (W-L-D) | Active |
| Chris Gruetzemacher | “Gritz” | Lightweight | 15-5-0 (W-L-D) | Active |
| Chris Gutierrez | “El Guapo” | Bantamweight | 22-7-2 (W-L-D) | Active |
| Chris Hofmann | Welterweight | 9-2-0 (W-L-D) | Active | |
| Chris Padilla | “Taco” | Lightweight | 17-6-1 (W-L-D) | Active |
| Christian Edwards | “Pain” | Light Heavyweight | 8-5-0 (W-L-D) | Active |
| Christian Leroy Duncan | “CLD” | Middleweight | 15-2-0 (W-L-D) | Active |
| Christian Lohsen | Lightweight | 4-2-0 (W-L-D) | Active | |
| Christian Ocon | “The Don” | Bantamweight | 2-1-0 (W-L-D) | Active |
| Christian Rodriguez | Featherweight | 12-4-0 (W-L-D) | Active | |
| Christopher Alvidrez | Welterweight | 7-1-0 (W-L-D) | Active | |
| Ciryl Gane | “Bon Gamin” | Heavyweight | 14-2-0 (W-L-D) | Active |
| Claudia Leite | Women's Bantamweight | 8-3-0 (W-L-D) | Active | |
| Claudio Puelles | “Prince of Peru” | Lightweight | 13-5-0 (W-L-D) | Active |
| Clayton Carpenter | Flyweight | 8-3-0 (W-L-D) | Active | |
| Cody Belisle | “Bodacious” | Light Heavyweight | 0-0-0 (W-L-D) | Active |
| Cody Brundage | Middleweight | 12-9-1 (W-L-D) | Active | |
| Cody Chovancek | Bantamweight | 9-0-0 (W-L-D) | Active | |
| Cody Durden | “Custom Made” | Flyweight | 18-11-1 (W-L-D) | Active |
| Cody Garbrandt | “No Love” | Bantamweight | 15-8-0 (W-L-D) | Active |
| Cody Gibson | “The Renegade” | Bantamweight | 22-12-0 (W-L-D) | Active |
| Cody Haddon | Bantamweight | 9-1-0 (W-L-D) | Active | |
| Colby Thicknesse | “Slickness” | Bantamweight | 9-1-0 (W-L-D) | Active |
| Coltin Cole | “The Truth” | Heavyweight | 4-5-0 (W-L-D) | Active |
| Conor McGregor | “The Notorious” | Welterweight | 22-7-0 (W-L-D) | Active |
| Corinne Laframboise | Women's Flyweight | 8-5-0 (W-L-D) | Active | |
| Cortney Casey | “Cast Iron” | Women's Flyweight | 10-10-0 (W-L-D) | Active |
| Cory Corbin | “Hamma” | Heavyweight | 0-0-0 (W-L-D) | Active |
| Cory Sandhagen | Bantamweight | 18-7-0 (W-L-D) | Active | |
| Court McGee | “The Crusher” | Welterweight | 23-14-0 (W-L-D) | Active |
| Cristian Quinonez | “Problema” | Bantamweight | 19-5-0 (W-L-D) | Active |
| Curtis Blaydes | “Razor” | Heavyweight | 19-6-0 (W-L-D) | Active |
| Cynthia Calvillo | Women's Strawweight | 9-6-1 (W-L-D) | Active | |
| Da'Mon Blackshear | “The Monster” | Bantamweight | 17-8-1 (W-L-D) | Active |
| Dakota Hope | “Huracán” | Lightweight | 11-2-0 (W-L-D) | Active |
| Dakota Weigher | “Iron Slap” | Light Heavyweight | 0-0-0 (W-L-D) | Active |
| Dallas Marron | “El Tigre” | Welterweight | 0-0-0 (W-L-D) | Active |
| Damian Pinas | “The Baba Yaga” | Middleweight | 10-1-0 (W-L-D) | Active |
| Damian Rzepecki | Lightweight | 10-0-0 (W-L-D) | Active | |
| Damien Anderson | “Demon Hands” | Featherweight | 5-1-0 (W-L-D) | Active |
| Damir Hadžović | “The Bosnian Bomber” | Lightweight | 14-8-0 (W-L-D) | Active |
| Dan Hooker | “The Hangman” | Lightweight | 24-14-0 (W-L-D) | Active |
| Daniel Frunza | Welterweight | 9-4-0 (W-L-D) | Active | |
| Daniel Lacerda | “Miojo” | Flyweight | 11-6-0 (W-L-D) | Active |
| Daniel Rodriguez | “D-Rod” | Welterweight | 20-5-0 (W-L-D) | Active |
| Daniel Santos | “Willycat” | Featherweight | 14-3-0 (W-L-D) | Active |
| Daniel Spohn | “Dragon” | Light Heavyweight | 15-6-0 (W-L-D) | Active |
| Daniel Swain | Featherweight | 20-10-1 (W-L-D) | Active | |
| Daniel Zellhuber | “Golden Boy” | Lightweight | 15-4-0 (W-L-D) | Active |
| Daniil Donchenko | Welterweight | 15-2-0 (W-L-D) | Active | |
| Danilo Suzart | Heavyweight | 9-2-0 (W-L-D) | Active | |
| Danny Henry | “The Hatchet” | Featherweight | 12-4-0 (W-L-D) | Active |
| Danny Sabatello | Bantamweight | 9-1-0 (W-L-D) | Active | |
| Danny Silva | “El Puma” | Featherweight | 11-2-0 (W-L-D) | Active |
| Daria Zhelezniakova | “Iron Lady” | Women's Bantamweight | 10-3-0 (W-L-D) | Active |
| Darren Elkins | “The Damage” | Featherweight | 29-12-0 (W-L-D) | Active |
| Darrius Flowers | “Beastmode” | Lightweight | 13-8-1 (W-L-D) | Active |
| Dashawn Boatwright | “Buck, the 400-pound Silverback” | Light Heavyweight | 3-1-0 (W-L-D) | Active |
| Davey Grant | “Dangerous” | Bantamweight | 18-8-0 (W-L-D) | Active |
| Davi Costa | Flyweight | 0-0-0 (W-L-D) | Active | |
| David Dvorak | “Undertaker” | Flyweight | 20-6-0 (W-L-D) | Active |
| David Martinez | Bantamweight | 14-1-0 (W-L-D) | Active | |
| David Onama | Featherweight | 14-3-0 (W-L-D) | Active | |
| David Teymur | Lightweight | 8-2-0 (W-L-D) | Active | |
| Deiveson Figueiredo | “Deus da Guerra” | Bantamweight | 25-7-1 (W-L-D) | Active |
| Denis Tiuliulin | Middleweight | 10-10-0 (W-L-D) | Active | |
| Denise Gomes | “Dee” | Women's Strawweight | 12-3-0 (W-L-D) | Active |
| Dennis Buzukja | “The Great” | Featherweight | 12-6-0 (W-L-D) | Active |
| Denys Bondar | “Psycho” | Flyweight | 14-5-0 (W-L-D) | Active |
| Denzel Freeman | “Luke Fox” | Heavyweight | 7-2-0 (W-L-D) | Active |
| Derrick Lewis | “The Black Beast” | Heavyweight | 29-14-0 (W-L-D) | Active |
| Devin Clark | “Brown Bear” | Light Heavyweight | 14-9-0 (W-L-D) | Active |
| Devin Smyth | Welterweight | 4-2-0 (W-L-D) | Active | |
| Diego Ferreira | Lightweight | 19-7-0 (W-L-D) | Active | |
| Diego Henrique da Silva | “Gaucho” | Middleweight | 8-4-0 (W-L-D) | Active |
| Diego Lopes | Featherweight | 28-8-0 (W-L-D) | Active | |
| Ding Meng | Welterweight | 35-10-0 (W-L-D) | Active | |
| Dinis Paiva | Featherweight | 13-8-0 (W-L-D) | Active | |
| Dione Barbosa | “The Witch” | Women's Flyweight | 10-4-0 (W-L-D) | Active |
| Diyar Nurgozhay | Light Heavyweight | 11-2-0 (W-L-D) | Active | |
| Djorden Santos | “Shakur” | Middleweight | 11-3-0 (W-L-D) | Active |
| Dom Mar Fan | “Street Buddha” | Lightweight | 9-3-0 (W-L-D) | Active |
| Dominick Reyes | “The Devastator” | Light Heavyweight | 16-5-0 (W-L-D) | Active |
| Dominik Melendez | “The Menace” | Middleweight | 0-0-0 (W-L-D) | Active |
| Donavan Beard | Middleweight | 0-1-0 (W-L-D) | Active | |
| DongHun Choi | Flyweight | 9-0-0 (W-L-D) | Active | |
| Donte Johnson | “Lock Jaw” | Middleweight | 8-0-0 (W-L-D) | Active |
| Dooho Choi | “The Korean Superboy” | Featherweight | 17-4-1 (W-L-D) | Active |
| Douglas Silva de Andrade | “D Silva” | Featherweight | 29-7-0 (W-L-D) | Active |
| Drakkar Klose | Lightweight | 16-3-1 (W-L-D) | Active | |
| Drew Dober | Lightweight | 29-15-0 (W-L-D) | Active | |
| Dricus Du Plessis | “Stillknocks” | Middleweight | 24-3-0 (W-L-D) | Active |
| Dustin Jacoby | “The Hanyak” | Light Heavyweight | 22-9-1 (W-L-D) | Active |
| Dustin Joynson | Heavyweight | 5-0-0 (W-L-D) | Active | |
| Dustin Poirier | “The Diamond” | Lightweight | 30-10-0 (W-L-D) | Active |
| Dustin Stoltzfus | Middleweight | 16-8-0 (W-L-D) | Active | |
| Duško Todorović | “Thunder” | Middleweight | 13-6-0 (W-L-D) | Active |
| Dylan Salvador | Lightweight | 5-2-0 (W-L-D) | Active | |
| Edgar Chairez | “Puro Chicali” | Flyweight | 14-6-0 (W-L-D) | Active |
| Edivan Santos | Heavyweight | 12-3-1 (W-L-D) | Active | |
| Edmen Shahbazyan | “The Golden Boy” | Middleweight | 16-6-0 (W-L-D) | Active |
| Edson Barboza | “Junior” | Lightweight | 24-14-0 (W-L-D) | Active |
| Eduarda Moura | “Ronda” | Women's Flyweight | 12-2-0 (W-L-D) | Active |
| Eduardo Matias Torres | Bantamweight | 0-1-0 (W-L-D) | Active | |
| Eduardo Neves | Heavyweight | 7-2-0 (W-L-D) | Active | |
| Eli Aronov | Middleweight | 6-1-0 (W-L-D) | Active | |
| Elias Urbina | Middleweight | 3-1-0 (W-L-D) | Active | |
| Elijah Smith | “Swift” | Bantamweight | 10-1-0 (W-L-D) | Active |
| Elise Reed | Women's Strawweight | 8-5-0 (W-L-D) | Active | |
| Elisha Ellison | “The Snack Panther” | Heavyweight | 5-3-0 (W-L-D) | Active |
| Elves Brener | Lightweight | 16-6-0 (W-L-D) | Active | |
| Emilio Cuellar | Flyweight | 6-1-0 (W-L-D) | Active | |
| Emrah Sonmez | Featherweight | 14-5-0 (W-L-D) | Active | |
| Eperaim Ginting | Bantamweight | 6-1-0 (W-L-D) | Active | |
| Eric McConico | Middleweight | 11-4-1 (W-L-D) | Active | |
| Eric Nolan | “Nightime” | Welterweight | 8-5-0 (W-L-D) | Active |
| Erin Blanchfield | “Cold Blooded” | Women's Flyweight | 14-2-0 (W-L-D) | Active |
| Erisson Ferreira | Flyweight | 12-2-0 (W-L-D) | Active | |
| Ernesta Kareckaite | “Heavy-Handed” | Women's Flyweight | 6-2-1 (W-L-D) | Active |
| Esteban Ribovics | “El Gringo” | Lightweight | 15-3-0 (W-L-D) | Active |
| Estefani Almeida | Women's Flyweight | 7-3-0 (W-L-D) | Active | |
| Ethyn Ewing | “The Professor Finesser” | Bantamweight | 10-2-0 (W-L-D) | Active |
| Evan Elder | “The Phenom” | Lightweight | 10-2-0 (W-L-D) | Active |
| Evan Sweesy | “Showtime Swees” | Light Heavyweight | 0-0-0 (W-L-D) | Active |
| Ezra Elliot | Featherweight | 8-0-0 (W-L-D) | Active | |
| Fabio Agu | Middleweight | 0-0-0 (W-L-D) | Active | |
| Fabiola Pidroni | Women's Strawweight | 5-0-0 (W-L-D) | Active | |
| Farid Basharat | “Ferocious” | Bantamweight | 16-0-0 (W-L-D) | Active |
| Farman Hasanov | “The Lion” | Welterweight | 6-0-0 (W-L-D) | Active |
| Farès Ziam | “Smile Killer” | Lightweight | 18-5-0 (W-L-D) | Active |
| Fatima Kline | “The Archangel” | Women's Strawweight | 10-1-0 (W-L-D) | Active |
| Felipe Franco | “Negão” | Heavyweight | 10-1-0 (W-L-D) | Active |
| Felipe Lima | “Jungle Boy” | Bantamweight | 14-2-0 (W-L-D) | Active |
| Felix Klinkhammer | Welterweight | 7-0-0 (W-L-D) | Active | |
| Feng Pengchao | Featherweight | 15-9-1 (W-L-D) | Active | |
| Fernando Padilla | “El Valiente” | Featherweight | 16-6-0 (W-L-D) | Active |
| Fernie Garcia | Bantamweight | 10-5-0 (W-L-D) | Active | |
| Francis Marshall | “Fire” | Lightweight | 10-3-0 (W-L-D) | Active |
| Francisco Prado | Welterweight | 12-5-0 (W-L-D) | Active | |
| Frank Holland | “The Tank” | Heavyweight | 0-0-0 (W-L-D) | Active |
| Frankie Saenz | Bantamweight | 13-7-0 (W-L-D) | Active | |
| Freddy Emiliano Linares | Featherweight | 0-1-0 (W-L-D) | Active | |
| Gabe Green | “Gifted” | Lightweight | 12-5-0 (W-L-D) | Active |
| Gable Steveson | Heavyweight | 4-0-0 (W-L-D) | Active | |
| Gabriel Bonfim | “Marretinha” | Welterweight | 20-1-0 (W-L-D) | Active |
| Gabriel Santos | “Mosquitinho” | Featherweight | 12-2-0 (W-L-D) | Active |
| Gabriella Fernandes | “Gabi” | Women's Flyweight | 11-4-0 (W-L-D) | Active |
| Garrett Armfield | Bantamweight | 10-5-0 (W-L-D) | Active | |
| Garrett Grimes | Middleweight | 0-0-0 (W-L-D) | Active | |
| Garrett Gross | “Glory to God” | Lightweight | 11-7-0 (W-L-D) | Active |
| Gaston Bolanos | “DreamKiller” | Featherweight | 9-5-0 (W-L-D) | Active |
| Gauge Young | “Gee Money” | Lightweight | 11-3-0 (W-L-D) | Active |
| Geoff Neal | “Handz of Steel” | Welterweight | 16-8-0 (W-L-D) | Active |
| George Hardwick | Lightweight | 12-2-0 (W-L-D) | Active | |
| Gerald Meerschaert | “GM3” | Middleweight | 37-22-0 (W-L-D) | Active |
| Giga Chikadze | “Ninja” | Featherweight | 15-6-0 (W-L-D) | Active |
| Gilbert Urbina | “The RGV Bad Boy” | Middleweight | 7-5-0 (W-L-D) | Active |
| Gillian Robertson | “The Savage” | Women's Strawweight | 17-8-0 (W-L-D) | Active |
| Gisele Moreira | “Gi” | Women's Bantamweight | 8-3-0 (W-L-D) | Active |
| Gokhan Saricam | Heavyweight | 12-2-0 (W-L-D) | Active | |
| Grant Dawson | “KGD” | Lightweight | 24-3-1 (W-L-D) | Active |
| Greg Rebello | “Ribz” | Heavyweight | 24-8-0 (W-L-D) | Active |
| Greg Velasco | Heavyweight | 6-1-0 (W-L-D) | Active | |
| Gregor Gillespie | “The Gift” | Lightweight | 14-1-0 (W-L-D) | Active |
| Gregory Rodrigues | “Robocop” | Middleweight | 19-6-0 (W-L-D) | Active |
| Guilherme Pat | “Kong” | Heavyweight | 6-1-0 (W-L-D) | Active |
| Gunnar Nelson | “Gunni” | Welterweight | 19-6-1 (W-L-D) | Active |
| Hailey Cowan | “All Hail” | Women's Bantamweight | 7-5-0 (W-L-D) | Active |
| Hannah Goldy | “24K” | Women's Flyweight | 6-4-0 (W-L-D) | Active |
| Harrison Garcia | “Hitman” | Light Heavyweight | 0-0-0 (W-L-D) | Active |
| Harry Hardwick | “Houdini” | Featherweight | 13-5-1 (W-L-D) | Active |
| Hecher Sosa | “Guanche Warrior” | Bantamweight | 15-1-0 (W-L-D) | Active |
| Henrique Da Silva Lopes | Heavyweight | 5-2-0 (W-L-D) | Active | |
| Henrique Shiguemoto | Middleweight | 13-4-1 (W-L-D) | Active | |
| Henrique da Silva | “Frankenstein” | Light Heavyweight | 14-5-0 (W-L-D) | Active |
| Herdem Alacabek | Light Heavyweight | 5-1-0 (W-L-D) | Active | |
| Hyder Amil | “The Hurricane” | Featherweight | 11-3-0 (W-L-D) | Active |
| HyunSung Park | “Peace of Mind” | Flyweight | 10-2-0 (W-L-D) | Active |
| Ian Heinisch | “The Hurricane” | Middleweight | 14-5-0 (W-L-D) | Active |
| Ian Machado Garry | “The Future” | Welterweight | 17-1-0 (W-L-D) | Active |
| Iasmin Lucindo | Women's Strawweight | 18-6-0 (W-L-D) | Active | |
| Ibo Aslan | “The Last Ottoman” | Light Heavyweight | 14-4-0 (W-L-D) | Active |
| Ignacio Bahamondes | “La Jaula” | Lightweight | 17-7-0 (W-L-D) | Active |
| Igor Severino | Flyweight | 8-1-0 (W-L-D) | Active | |
| Ikram Aliskerov | Middleweight | 18-2-0 (W-L-D) | Active | |
| Ilia Topuria | “El Matador” | Lightweight | 17-1-0 (W-L-D) | Active |
| Imanol Rodriguez | “Himan” | Flyweight | 7-0-0 (W-L-D) | Active |
| Ion Cutelaba | “The Hulk” | Light Heavyweight | 20-12-1 (W-L-D) | Active |
| Isis Verbeek | Women's Strawweight | 5-2-0 (W-L-D) | Active | |
| Islam Dulatov | “The Ripper” | Welterweight | 12-1-0 (W-L-D) | Active |
| C Islam Makhachev | Welterweight | 28-1-0 (W-L-D) | Active | |
| Ismael Bonfim | “Marreta” | Lightweight | 20-6-0 (W-L-D) | Active |
| Ismail Naurdiev | “Berzdog” | Middleweight | 25-8-0 (W-L-D) | Active |
| Israel Adesanya | “The Last Stylebender” | Middleweight | 24-6-0 (W-L-D) | Active |
| Issa Isakov | Lightweight | 10-3-0 (W-L-D) | Active | |
| Ivan Valenzuela | Middleweight | 8-2-0 (W-L-D) | Active | |
| Iwo Baraniewski | “Rudy” | Light Heavyweight | 9-0-0 (W-L-D) | Active |
| JJ Aldrich | Women's Flyweight | 15-7-0 (W-L-D) | Active | |
| JJ Okanovich | “The Bosnian Bomber” | Lightweight | 7-1-0 (W-L-D) | Active |
| JP Buys | “Young Savage” | Bantamweight | 9-6-0 (W-L-D) | Active |
| Jack Cartwright | Bantamweight | 10-1-0 (W-L-D) | Active | |
| Jack Della Maddalena | Welterweight | 18-4-0 (W-L-D) | Active | |
| Jack Hermansson | “The Joker” | Welterweight | 24-10-0 (W-L-D) | Active |
| Jack Jenkins | “Phar” | Featherweight | 14-4-0 (W-L-D) | Active |
| Jackson McVey | “The Moose” | Middleweight | 7-2-0 (W-L-D) | Active |
| Jacob Malkoun | “Mamba” | Middleweight | 10-3-0 (W-L-D) | Active |
| Jacob Silva | Flyweight | 6-4-0 (W-L-D) | Active | |
| Jacobe Smith | “Cobe” | Welterweight | 12-0-0 (W-L-D) | Active |
| Jacqueline Cavalcanti | Women's Bantamweight | 10-2-0 (W-L-D) | Active | |
| Jae Hyun Park | Lightweight | 1-2-0 (W-L-D) | Active | |
| Jafel Filho | “Pastor” | Bantamweight | 17-5-0 (W-L-D) | Active |
| Jai Herbert | “Black Country Banger” | Lightweight | 14-6-1 (W-L-D) | Active |
| Jaime Alvarez | Flyweight | 6-1-0 (W-L-D) | Active | |
| Jair Farias | Featherweight | 10-1-0 (W-L-D) | Active | |
| Jake Collier | “The Prototype” | Heavyweight | 13-10-0 (W-L-D) | Active |
| Jakub Wiklacz | Bantamweight | 18-3-2 (W-L-D) | Active | |
| Jalin Turner | “The Tarantula” | Lightweight | 15-9-0 (W-L-D) | Active |
| Jamahal Hill | “Sweet Dreams” | Light Heavyweight | 12-4-0 (W-L-D) | Active |
| Jamall Emmers | “Pretty Boy” | Featherweight | 22-8-0 (W-L-D) | Active |
| Jamelle Jones | “The Beast” | Light Heavyweight | 7-5-0 (W-L-D) | Active |
| James Barnes | “Mooka” | Bantamweight | 14-5-0 (W-L-D) | Active |
| James Gray | “The Phenom” | Bantamweight | 4-1-0 (W-L-D) | Active |
| James Krause | “The James Krause” | Welterweight | 28-9-0 (W-L-D) | Active |
| Jamey-Lyn Horth | Women's Flyweight | 9-3-0 (W-L-D) | Active | |
| Jamie Siraj | “The Gremlin” | Bantamweight | 14-4-0 (W-L-D) | Active |
| Jan Błachowicz | Light Heavyweight | 29-11-2 (W-L-D) | Active | |
| Janaina Silva | Women's Strawweight | 5-1-0 (W-L-D) | Active | |
| Jansey Silva | Middleweight | 7-2-0 (W-L-D) | Active | |
| Jaqueline Amorim | Women's Strawweight | 11-2-0 (W-L-D) | Active | |
| Jared Cannonier | “Tha Killa Gorilla” | Middleweight | 18-10-0 (W-L-D) | Active |
| Jared Gordon | “Flash” | Lightweight | 21-9-0 (1 NC) | Active |
| Jasmine Jasudavicius | Women's Flyweight | 15-4-0 (W-L-D) | Active | |
| Javier Reyes | “Blair” | Featherweight | 23-6-0 (W-L-D) | Active |
| Jean Matsumoto | Bantamweight | 18-2-0 (W-L-D) | Active | |
| Jean Silva | “Lord” | Featherweight | 17-3-0 (W-L-D) | Active |
| Jean-Paul Lebosnoyani | “Mufasa” | Welterweight | 10-2-0 (W-L-D) | Active |
| Jefferson Nascimento | “Toddynho” | Welterweight | 13-1-0 (W-L-D) | Active |
| Jeisla Chaves | “A Braba” | Women's Strawweight | 8-0-0 (W-L-D) | Active |
| Jennifer Maia | Women's Flyweight | 21-10-1 (W-L-D) | Active | |
| JeongYeong Lee | “Korean Tiger” | Featherweight | 11-3-0 (W-L-D) | Active |
| Jeremiah Wells | Welterweight | 13-4-1 (W-L-D) | Active | |
| Jeremy Stephens | “Lil' Heathen” | Lightweight | 29-23-0 (1 NC) | Active |
| Jesse Mariotti | “Slap Papi” | Light Heavyweight | 0-0-0 (W-L-D) | Active |
| Jesse Murray | “Hollywood” | Light Heavyweight | 8-4-0 (W-L-D) | Active |
| Jhonata Diniz | Heavyweight | 9-2-0 (W-L-D) | Active | |
| Jhonata Silva | Flyweight | 8-2-0 (W-L-D) | Active | |
| Jhonoven Pati | Middleweight | 6-4-0 (W-L-D) | Active | |
| Jim Miller | “A-10” | Lightweight | 39-19-0 (W-L-D) | Active |
| Jimmy Crute | Light Heavyweight | 14-4-2 (W-L-D) | Active | |
| Jiri Prochazka | Light Heavyweight | 32-6-1 (W-L-D) | Active | |
| Joanderson Brito | “Tubarao” | Featherweight | 19-5-1 (W-L-D) | Active |
| Joanne Wood | “JoJo” | Women's Flyweight | 17-8-0 (W-L-D) | Active |
| Joao Elias | Flyweight | 17-4-1 (W-L-D) | Active | |
| Joaquim Silva | “Netto BJJ” | Lightweight | 14-6-0 (W-L-D) | Active |
| Joaquin Buckley | “New Mansa” | Welterweight | 21-8-0 (W-L-D) | Active |
| Joe Lauzon | Lightweight | 28-16-0 (W-L-D) | Active | |
| Joe Pyfer | “Bodybagz” | Middleweight | 16-3-0 (W-L-D) | Active |
| Joel Alvarez | “El Fenomeno” | Welterweight | 23-4-0 (W-L-D) | Active |
| John Castaneda | “Sexi Mexi” | Featherweight | 21-8-1 (W-L-D) | Active |
| John Garza | “Mowgli” | Bantamweight | 6-2-0 (W-L-D) | Active |
| John Makdessi | “The Bull” | Lightweight | 18-9-0 (W-L-D) | Active |
| John Yannis | Bantamweight | 10-5-0 (W-L-D) | Active | |
| Johnny Munoz | “Kid Kvenbo” | Bantamweight | 12-4-0 (W-L-D) | Active |
| Johnny Walker | Light Heavyweight | 22-10-0 (1 NC) | Active | |
| Jon Jones | “Bones” | Heavyweight | 28-1-0 (W-L-D) | Active |
| Jonathan Correa | “Puerto Rican Rambo” | Heavyweight | 0-0-0 (W-L-D) | Active |
| Jonathan Martinez | “Dragon” | Bantamweight | 19-6-0 (W-L-D) | Active |
| Jonathan Micallef | “The Captain” | Welterweight | 10-1-0 (W-L-D) | Active |
| Jonny Parsons | “The Sluggernaut” | Welterweight | 9-3-0 (W-L-D) | Active |
| JooSang Yoo | “Zombie Jr.” | Featherweight | 9-1-0 (W-L-D) | Active |
| Jordan Leavitt | “The Monkey King” | Featherweight | 13-4-0 (W-L-D) | Active |
| Jose Alday | Bantamweight | 14-6-1 (W-L-D) | Active | |
| Jose Augusto | Light Heavyweight | 6-2-0 (W-L-D) | Active | |
| Jose Delano | Featherweight | 17-3-0 (W-L-D) | Active | |
| Jose Miguel Delgado | Featherweight | 10-2-0 (W-L-D) | Active | |
| Jose Montanha da Silva | Heavyweight | 6-1-0 (W-L-D) | Active | |
| Jose Ochoa | “Kalzifer” | Flyweight | 9-2-0 (W-L-D) | Active |
| Joselyne Edwards | “La Pantera” | Women's Bantamweight | 18-6-0 (W-L-D) | Active |
| Joseph Lowry | Lightweight | 7-2-0 (W-L-D) | Active | |
| Joseph Morales | “Bopo” | Flyweight | 15-2-0 (W-L-D) | Active |
| Josh Appelt | Heavyweight | 15-7-0 (W-L-D) | Active | |
| Josh Emmett | “CC0 (C-C-OH)” | Featherweight | 19-7-0 (W-L-D) | Active |
| Josh Hokit | Heavyweight | 10-0-0 (W-L-D) | Active | |
| Josh Parisian | Heavyweight | 15-8-0 (W-L-D) | Active | |
| Josh Wick | Lightweight | 12-6-0 (W-L-D) | Active | |
| C Joshua Van | “The Fearless” | Flyweight | 17-2-0 (W-L-D) | Active |
| Joshua Wang-Kim | Bantamweight | 5-2-0 (W-L-D) | Active | |
| Josiah Harrell | “The Muscle Hamster” | Welterweight | 11-1-0 (W-L-D) | Active |
| Josiane Nunes | “Josi” | Women's Bantamweight | 10-4-0 (W-L-D) | Active |
| Josias Musasa | “The KO Wizard” | Bantamweight | 8-2-0 (W-L-D) | Active |
| José Souza | “Canela” | Welterweight | 9-1-0 (W-L-D) | Active |
| Journey Newson | Bantamweight | 10-5-0 (W-L-D) | Active | |
| Jovan Leka | Heavyweight | 11-2-0 (W-L-D) | Active | |
| Juan Andres Luna | Flyweight | 12-1-0 (W-L-D) | Active | |
| Juan Diaz | “Pegajoso” | Bantamweight | 16-1-1 (W-L-D) | Active |
| Juancamilo Ronderos | “100” | Flyweight | 4-2-0 (W-L-D) | Active |
| Julian Erosa | “Juicy J” | Featherweight | 31-14-0 (W-L-D) | Active |
| Juliana Miller | “Killer” | Women's Flyweight | 5-4-0 (W-L-D) | Active |
| Julianna Peña | “The Venezuelan Vixen” | Women's Bantamweight | 13-6-0 (W-L-D) | Active |
| Julien Leblanc | Middleweight | 10-3-0 (W-L-D) | Active | |
| Julius Anglickas | Light Heavyweight | 5-1-0 (W-L-D) | Active | |
| Julius Walker | “Juice Box” | Light Heavyweight | 7-3-0 (W-L-D) | Active |
| JunYong Park | “The Iron Turtle” | Middleweight | 19-7-0 (W-L-D) | Active |
| Jung Hyun Lee | Flyweight | 0-1-0 (W-L-D) | Active | |
| Junior Tafa | “The Juggernaut” | Light Heavyweight | 7-6-0 (W-L-D) | Active |
| Junye Gao | Bantamweight | 19-12-0 (W-L-D) | Active | |
| Justin Burlinson | Welterweight | 6-1-0 (W-L-D) | Active | |
| C Justin Gaethje | “The Highlight” | Lightweight | 28-5-0 (W-L-D) | Active |
| Justin Gonzales | “J-Train” | Featherweight | 6-0-0 (W-L-D) | Active |
| Justin Jones | Middleweight | 9-2-0 (W-L-D) | Active | |
| Jéssica Andrade | “Bate Estaca” | Women's Strawweight | 26-15-0 (W-L-D) | Active |
| Kaan Ofli | “Genghis” | Featherweight | 15-4-1 (W-L-D) | Active |
| Kai Asakura | Bantamweight | 22-6-0 (W-L-D) | Active | |
| Kai Kamaka III | “Da Fighting Hawaiian” | Featherweight | 18-8-1 (W-L-D) | Active |
| Kai Kara-France | “Don't Blink” | Flyweight | 25-12-0 (W-L-D) | Active |
| Kaik Brito | Welterweight | 16-5-0 (W-L-D) | Active | |
| Kaleio Romero | Featherweight | 6-2-0 (W-L-D) | Active | |
| Kamaru Usman | “Nigerian Nightmare” | Middleweight | 21-5-0 (W-L-D) | Active |
| Kamuela Kirk | “The Jawaiian” | Lightweight | 12-6-0 (W-L-D) | Active |
| Kanako Murata | Women's Strawweight | 12-3-0 (W-L-D) | Active | |
| Karine Silva | “Killer” | Women's Flyweight | 19-7-0 (W-L-D) | Active |
| Karol Rosa | Women's Bantamweight | 19-8-0 (W-L-D) | Active | |
| Karolina Kowalkiewicz | Women's Strawweight | 16-10-0 (W-L-D) | Active | |
| Karolina Wojcik | Women's Strawweight | 9-2-0 (W-L-D) | Active | |
| Kathryn Paprocki | Women's Strawweight | 3-2-0 (W-L-D) | Active | |
| Katlyn Cerminara | “Blonde Fighter” | Women's Flyweight | 18-6-0 (W-L-D) | Active |
| Kauê Fernandes | Lightweight | 11-2-0 (W-L-D) | Active | |
| C Kayla Harrison | Women's Bantamweight | 19-1-0 (W-L-D) | Active | |
| Kazuma Maruyama | Lightweight | 11-7-0 (W-L-D) | Active | |
| Keifer Roberts | “Keif” | Heavyweight | 0-0-0 (W-L-D) | Active |
| Keiichiro Nakamura | Featherweight | 8-1-0 (W-L-D) | Active | |
| Keisuke Sasu | “Sasuke” | Featherweight | 11-3-1 (W-L-D) | Active |
| Kelly Velasco | “Killer” | Women's Bantamweight | 2-1-0 (W-L-D) | Active |
| Kelvin Gastelum | Middleweight | 21-11-0 (W-L-D) | Active | |
| Kennedy Freeman | Women's Flyweight | 6-0-0 (W-L-D) | Active | |
| Kennedy Nzechukwu | “Chosen” | Heavyweight | 14-6-1 (W-L-D) | Active |
| Ketlen Souza | “Esquentadinha” | Women's Strawweight | 17-6-0 (W-L-D) | Active |
| Kevin Borjas | “El Gallo Negro” | Flyweight | 11-5-0 (W-L-D) | Active |
| Kevin Christian | Light Heavyweight | 9-4-0 (W-L-D) | Active | |
| Kevin Holland | “Trailblazer” | Welterweight | 29-15-0 (W-L-D) | Active |
| Kevin Lee | “The Motown Phenom” | Welterweight | 18-8-0 (W-L-D) | Active |
| Kevin Syler | “El Nino Bala” | Lightweight | 10-1-0 (W-L-D) | Active |
| Kevin Szaflarski | Heavyweight | 11-2-0 (W-L-D) | Active | |
| Kevin Vallejos | “El Chino” | Featherweight | 18-1-0 (W-L-D) | Active |
| Khadzhimurat Bestaev | Middleweight | 0-1-0 (W-L-D) | Active | |
| Khalil Rountree Jr. | Light Heavyweight | 15-7-0 (W-L-D) | Active | |
| Khamzat Chimaev | “Borz” | Middleweight | 15-1-0 (W-L-D) | Active |
| Khaos Williams | “The OxFighter” | Welterweight | 16-5-0 (W-L-D) | Active |
| King Green | “King” | Lightweight | 36-17-1 (W-L-D) | Active |
| Kitt Campbell | Welterweight | 16-7-0 (W-L-D) | Active | |
| Klaudia Sygula | Women's Bantamweight | 8-2-0 (W-L-D) | Active | |
| Kody Steele | Lightweight | 8-1-0 (W-L-D) | Active | |
| Kolton Englund | Lightweight | 9-4-0 (W-L-D) | Active | |
| Korey Kuppe | Welterweight | 8-4-0 (W-L-D) | Active | |
| Koya Kanda | Featherweight | 12-5-0 (W-L-D) | Active | |
| Kurtis Campbell | “The Pink Panther” | Featherweight | 8-1-0 (W-L-D) | Active |
| Kyle Daukaus | Middleweight | 17-4-0 (W-L-D) | Active | |
| Kyle Driscoll | Featherweight | 12-3-0 (W-L-D) | Active | |
| Kyle Nelson | “The Monster” | Lightweight | 17-7-1 (W-L-D) | Active |
| Kyle Noblitt | Heavyweight | 11-2-0 (W-L-D) | Active | |
| Kyle Prepolec | “Killshot” | Lightweight | 18-10-0 (W-L-D) | Active |
| Kyle Reyes | Featherweight | 15-7-0 (W-L-D) | Active | |
| Kyler Phillips | “The Matrix” | Bantamweight | 12-5-0 (W-L-D) | Active |
| Kyoji Horiguchi | “Karate Kid” | Flyweight | 36-6-0 (W-L-D) | Active |
| Lance Gibson Jr. | “Fearless” | Lightweight | 10-2-0 (W-L-D) | Active |
| Lauren Murphy | “Lucky” | Women's Flyweight | 16-7-0 (W-L-D) | Active |
| Lazar Stojadinovic | Featherweight | 12-5-0 (W-L-D) | Active | |
| Leon Aliu | Middleweight | 10-2-0 (W-L-D) | Active | |
| Leon Edwards | “Rocky” | Welterweight | 22-6-0 (1 NC) | Active |
| Leon Shahbazyan | “S.O.G.” | Welterweight | 12-5-0 (W-L-D) | Active |
| Leonardo Damiani | Welterweight | 10-3-1 (W-L-D) | Active | |
| Leonardo De Oliveira | Middleweight | 0-0-0 (W-L-D) | Active | |
| Lerone Murphy | “The Miracle” | Featherweight | 17-1-1 (W-L-D) | Active |
| Lerryan Douglas | “Gunslinger” | Featherweight | 14-5-0 (W-L-D) | Active |
| Levan Chokheli | Welterweight | 15-3-0 (W-L-D) | Active | |
| Levi Rodrigues Jr. | “Baby Monster” | Light Heavyweight | 0-1-0 (W-L-D) | Active |
| Li Jingliang | “The Leech” | Welterweight | 19-9-0 (W-L-D) | Active |
| Li Kaiwen | Featherweight | 3-2-0 (W-L-D) | Active | |
| Logan Greenhalgh | “Tank” | Heavyweight | 0-0-0 (W-L-D) | Active |
| Loma Lookboonmee | Women's Strawweight | 10-5-0 (W-L-D) | Active | |
| Lone’er Kavanagh | Flyweight | 10-2-0 (W-L-D) | Active | |
| Loopy Godinez | Women's Strawweight | 14-6-0 (W-L-D) | Active | |
| Lorenzo Hood | Heavyweight | 14-5-0 (W-L-D) | Active | |
| Louie Sutherland | “Vanilla Gorilla” | Heavyweight | 11-5-0 (W-L-D) | Active |
| Louis Jourdain | Bantamweight | 9-3-0 (W-L-D) | Active | |
| Louis Lee Scott | Bantamweight | 10-0-0 (W-L-D) | Active | |
| Lu Kai | Featherweight | 8-5-0 (W-L-D) | Active | |
| Lu Zhengyong | Flyweight | 12-7-0 (W-L-D) | Active | |
| Luana Pinheiro | Women's Strawweight | 11-5-0 (W-L-D) | Active | |
| Luana Santos | Women's Bantamweight | 11-2-0 (W-L-D) | Active | |
| Lucas Brennan | “Skywalker” | Lightweight | 11-3-0 (W-L-D) | Active |
| Lucas Fernando | Middleweight | 9-2-0 (W-L-D) | Active | |
| Lucas Rocha | “Fenomeno” | Flyweight | 18-2-0 (W-L-D) | Active |
| Lucie Pudilova | Women's Flyweight | 14-10-0 (W-L-D) | Active | |
| Ludovit Klein | “Mr. Highlight” | Lightweight | 24-5-1 (W-L-D) | Active |
| Luis Gomez | “Tiger Junior” | Featherweight | 4-1-0 (W-L-D) | Active |
| Luis Gurule | “Grim” | Flyweight | 11-3-0 (W-L-D) | Active |
| Lukasz Sudolski | Light Heavyweight | 0-1-0 (W-L-D) | Active | |
| Luke Fernandez | Light Heavyweight | 6-1-0 (W-L-D) | Active | |
| Luke Riley | Featherweight | 14-0-0 (W-L-D) | Active | |
| Lyman Good | “Cyborg” | Welterweight | 21-6-0 (W-L-D) | Active |
| C Mackenzie Dern | Women's Strawweight | 16-5-0 (W-L-D) | Active | |
| Macy Chiasson | Women's Bantamweight | 11-6-0 (W-L-D) | Active | |
| Magomed Ankalaev | Light Heavyweight | 21-2-1 (1 NC) | Active | |
| Magomed Tuchalov | Light Heavyweight | 6-0-0 (W-L-D) | Active | |
| Magomed Zaynukov | Lightweight | 8-0-0 (W-L-D) | Active | |
| Maiara Amajanas Dos Santos | Women's Strawweight | 0-0-0 (W-L-D) | Active | |
| Mairon Santos | “The Legend” | Featherweight | 18-1-0 (W-L-D) | Active |
| Malcolm Wellmaker | “The Machine” | Bantamweight | 10-2-0 (W-L-D) | Active |
| Malik Lewis | Lightweight | 6-2-0 (W-L-D) | Active | |
| Mandel Nallo | “Mango” | Lightweight | 14-4-0 (W-L-D) | Active |
| Mandy Böhm | “Monster” | Women's Flyweight | 8-2-0 (W-L-D) | Active |
| Manel Kape | “StarBoy” | Flyweight | 23-7-0 (W-L-D) | Active |
| Manny Vazquez | Flyweight | 11-2-0 (W-L-D) | Active | |
| Manoel Sousa | “Manumito” | Lightweight | 14-1-0 (W-L-D) | Active |
| Manolo Zecchini | “Angelo Veneziano” | Featherweight | 11-5-0 (W-L-D) | Active |
| Manon Fiorot | “The Beast” | Women's Flyweight | 13-2-0 (W-L-D) | Active |
| Mansur Abdul-Malik | Middleweight | 9-1-1 (W-L-D) | Active | |
| Mantas Kondratavicius | Middleweight | 9-1-0 (W-L-D) | Active | |
| Manuel Torres | “El Loco” | Lightweight | 17-4-0 (W-L-D) | Active |
| MarQuel Mederos | Lightweight | 11-1-1 (W-L-D) | Active | |
| Marc Diakiese | “Bonecrusher” | Lightweight | 17-7-0 (W-L-D) | Active |
| Marc-Andre Barriault | “Powerbar” | Middleweight | 17-11-0 (W-L-D) | Active |
| Marcin Tybura | “Tybur” | Heavyweight | 27-11-0 (W-L-D) | Active |
| Marcio Alexandre | “Lyoto” | Middleweight | 13-3-0 (W-L-D) | Active |
| Marcio Alexandre Junior | “Lyoto” | 17-4-0 (W-L-D) | Active | |
| Marcio Barbosa | “Ticoto” | Featherweight | 18-2-0 (W-L-D) | Active |
| Marco Tulio | “Matuto” | Middleweight | 14-3-0 (W-L-D) | Active |
| Marcos Brigagao | Light Heavyweight | 11-1-0 (W-L-D) | Active | |
| Marcos Conrado Junior | Heavyweight | 0-0-0 (W-L-D) | Active | |
| Marcus Buchecha | Heavyweight | 5-3-1 (W-L-D) | Active | |
| Marcus McGhee | “The Maniac” | Bantamweight | 11-2-0 (W-L-D) | Active |
| Maria Silva | Women's Strawweight | 8-1-0 (W-L-D) | Active | |
| Marilia Santos | Women's Flyweight | 10-3-0 (W-L-D) | Active | |
| Mario Bautista | Bantamweight | 18-3-0 (W-L-D) | Active | |
| Mario Pinto | Heavyweight | 12-0-0 (W-L-D) | Active | |
| Mario Sousa | “Coração Valente” | Middleweight | 15-3-0 (W-L-D) | Active |
| Mariusz Ksiazkiewicz | Middleweight | 8-1-0 (W-L-D) | Active | |
| Mark Choinski | “The Shark” | Lightweight | 8-1-0 (W-L-D) | Active |
| Mark Climaco | Flyweight | 9-2-0 (W-L-D) | Active | |
| Mark Vologdin | Bantamweight | 12-4-2 (W-L-D) | Active | |
| Marlon Vera | “Chito” | Bantamweight | 23-12-1 (W-L-D) | Active |
| Marnic Mann | “The Sawed-Off Savage” | Women's Strawweight | 6-3-0 (W-L-D) | Active |
| Marvin Vettori | “The Italian Dream” | Middleweight | 19-10-1 (W-L-D) | Active |
| Marwan Rahiki | “Freaky” | Featherweight | 9-0-0 (W-L-D) | Active |
| Mason Jones | “The Dragon” | Lightweight | 18-2-0 (1 NC) | Active |
| Mateo Vogel | Featherweight | 8-3-0 (W-L-D) | Active | |
| Mateus Mendonça | “Bocao” | Flyweight | 10-3-0 (W-L-D) | Active |
| Mateusz Gamrot | “Gamer” | Lightweight | 26-4-0 (W-L-D) | Active |
| Mateusz Rębecki | Lightweight | 20-5-0 (W-L-D) | Active | |
| Matheus Camilo | “Jaguar” | Lightweight | 11-3-0 (W-L-D) | Active |
| Matt Dixon | Welterweight | 9-1-0 (W-L-D) | Active | |
| Matt Frevola | “The SteamRolla” | Lightweight | 11-6-1 (W-L-D) | Active |
| Matt Horwich. | 30-25-1 (W-L-D) | Active | ||
| Matěj Peňáz | Middleweight | 6-1-0 (W-L-D) | Active | |
| Mauricio Ruffy | Lightweight | 14-2-0 (W-L-D) | Active | |
| Max Gimenis | Heavyweight | 6-2-0 (W-L-D) | Active | |
| Max Holloway | “Blessed” | Lightweight | 27-9-0 (W-L-D) | Active |
| Max Mustaki | “Mad” | Lightweight | 6-3-0 (W-L-D) | Active |
| Maycee Barber | “The Future” | Women's Flyweight | 15-3-0 (W-L-D) | Active |
| Melissa Croden | “Scare” | Women's Bantamweight | 8-3-0 (W-L-D) | Active |
| Melissa Gatto | Women's Flyweight | 9-3-2 (W-L-D) | Active | |
| Melquizael Costa | “The Dalmatian” | Featherweight | 26-7-0 (W-L-D) | Active |
| Melsik Baghdasaryan | “The Gun” | Featherweight | 8-4-0 (W-L-D) | Active |
| Merab Dvalishvili | “The Machine” | Bantamweight | 21-5-0 (W-L-D) | Active |
| Michael Aswell Jr. | “The Texas Kid” | Featherweight | 11-5-0 (W-L-D) | Active |
| Michael Bonnette | “No Mercy” | Welterweight | 0-0-0 (W-L-D) | Active |
| Michael Chandler | “Iron” | Lightweight | 23-11-0 (W-L-D) | Active |
| Michael Cora | Welterweight | 4-1-0 (W-L-D) | Active | |
| Michael Johnson | “The Menace” | Lightweight | 25-20-0 (W-L-D) | Active |
| Michael Morales | Welterweight | 19-0-0 (W-L-D) | Active | |
| Michael Oliveira | Welterweight | 9-0-0 (W-L-D) | Active | |
| Michael Venom Page | “Venom” | Welterweight | 25-3-0 (W-L-D) | Active |
| Michal Martinek | “Blackbeard” | Heavyweight | 7-1-0 (W-L-D) | Active |
| Michal Oleksiejczuk | “Hussar” | Middleweight | 22-10-0 (W-L-D) | Active |
| Michelle Montague | “The Wild One” | Women's Bantamweight | 8-0-0 (W-L-D) | Active |
| Mickey Gall | Welterweight | 7-7-0 (W-L-D) | Active | |
| Miesha Tate | “Cupcake” | Women's Bantamweight | 20-10-0 (W-L-D) | Active |
| Mike Davis | “Beast Boy” | Lightweight | 12-3-0 (W-L-D) | Active |
| Mike Malott | “Proper” | Welterweight | 14-2-1 (W-L-D) | Active |
| Miles Johns | “Chapo” | Bantamweight | 15-5-0 (W-L-D) | Active |
| Miranda Maverick | “Fear The” | Women's Flyweight | 17-6-0 (W-L-D) | Active |
| Mitch Ramirez | Lightweight | 8-4-0 (W-L-D) | Active | |
| Mitch Raposo | Flyweight | 11-3-0 (W-L-D) | Active | |
| Mitchell Sipe | “The Sniper” | Heavyweight | 4-1-0 (W-L-D) | Active |
| Mizuki | Women's Strawweight | 16-6-0 (W-L-D) | Active | |
| Mo Miller | Bantamweight | 6-0-0 (W-L-D) | Active | |
| Modestas Bukauskas | “The Baltic Gladiator” | Light Heavyweight | 20-7-0 (W-L-D) | Active |
| Montel Jackson | “Quik” | Bantamweight | 15-4-0 (W-L-D) | Active |
| Montrel Talbert | “Bone” | Middleweight | 0-0-0 (W-L-D) | Active |
| Montserrat Conejo Ruiz | Women's Strawweight | 10-5-0 (W-L-D) | Active | |
| Morgan Charriere | “The Last Pirate” | Featherweight | 21-12-1 (W-L-D) | Active |
| Movsar Evloev | Featherweight | 20-0-0 (W-L-D) | Active | |
| Muhammad Naimov | “Hillman” | Featherweight | 13-4-0 (W-L-D) | Active |
| Muhammad Said | “Kubik” | Light Heavyweight | 9-0-0 (W-L-D) | Active |
| Muin Gafurov | “Tajiik” | Bantamweight | 20-7-0 (W-L-D) | Active |
| Murtaza Talha | Light Heavyweight | 7-2-0 (W-L-D) | Active | |
| Murtazali Magomedov | “The Highlight” | Featherweight | 11-0-0 (W-L-D) | Active |
| Muslim Salikhov | “King of Kung Fu” | Welterweight | 22-6-0 (W-L-D) | Active |
| Myktybek Orolbai | “Krygyz” | Welterweight | 16-2-1 (W-L-D) | Active |
| Nair Nelikyan | Lightweight | 0-0-0 (W-L-D) | Active | |
| Nariman Abbassov | Lightweight | 0-1-0 (W-L-D) | Active | |
| Nasrat Haqparast | Lightweight | 18-6-0 (W-L-D) | Active | |
| Nasrudin Nasrudinov | Light Heavyweight | 9-1-0 (W-L-D) | Active | |
| Nassourdine Imavov | “The Sniper” | Middleweight | 17-4-0 (1 NC) | Active |
| Natalia Silva | Women's Flyweight | 20-5-1 (W-L-D) | Active | |
| Natan Levy | Lightweight | 8-2-0 (W-L-D) | Active | |
| Nate Landwehr | “The Train” | Featherweight | 18-8-0 (W-L-D) | Active |
| Nathaniel Wood | “The Last Kingsman” | Featherweight | 23-6-0 (W-L-D) | Active |
| Navajo Stirling | Light Heavyweight | 10-0-0 (W-L-D) | Active | |
| Nayara Maia | Women's Flyweight | 7-1-1 (W-L-D) | Active | |
| Nazim Sadykhov | “Black Wolf” | Lightweight | 11-3-1 (W-L-D) | Active |
| Neil Magny | “The Haitian Sensation” | Welterweight | 31-15-0 (W-L-D) | Active |
| Nick Diaz | Middleweight | 26-10-0 (W-L-D) | Active | |
| Nick Klein | “Blue Collar” | Middleweight | 6-3-0 (W-L-D) | Active |
| Nick Newell | Lightweight | 14-2-0 (W-L-D) | Active | |
| Nick Urso | Flyweight | 10-3-0 (W-L-D) | Active | |
| Nicolae Negumereanu | Light Heavyweight | 13-2-0 (W-L-D) | Active | |
| Nicolas Dalby | “Danish Dynamite” | Welterweight | 24-6-1 (W-L-D) | Active |
| Nicolle Caliari | Women's Strawweight | 9-4-0 (W-L-D) | Active | |
| Nikita Krylov | “The Miner” | Light Heavyweight | 31-12-0 (W-L-D) | Active |
| Niko Price | “The Hybrid” | Welterweight | 16-11-0 (W-L-D) | Active |
| Nikolas Motta | “Iron” | Lightweight | 15-6-0 (W-L-D) | Active |
| Nikolay Veretennikov | “Gladiator” | Welterweight | 14-7-0 (W-L-D) | Active |
| Nina Milosevic | Women's Bantamweight | 8-1-0 (W-L-D) | Active | |
| Nora Cornolle | Women's Bantamweight | 9-4-0 (W-L-D) | Active | |
| Norma Dumont | “The Immortal” | Women's Bantamweight | 13-3-0 (W-L-D) | Active |
| Nueraji Taiyilake | “Super Saiyan” | Lightweight | 12-1-0 (W-L-D) | Active |
| Nursulton Ruziboev | “Black” | Middleweight | 37-9-2 (W-L-D) | Active |
| Nurullo Aliev | “Tajik Eagle” | Lightweight | 11-0-0 (W-L-D) | Active |
| Nyamjargal Tumendemberel | “Art of Knockout” | Flyweight | 10-1-0 (W-L-D) | Active |
| Oban Elliott | “The Welsh Gangster” | Welterweight | 12-4-0 (W-L-D) | Active |
| Ode Osbourne | “The Jamaican Sensation” | Flyweight | 13-9-0 (W-L-D) | Active |
| Olivier Murad | Featherweight | 6-0-0 (W-L-D) | Active | |
| Ollie Schmid | “The Hungarian Stallion” | Featherweight | 4-3-0 (W-L-D) | Active |
| Oron Kahlon | Bantamweight | 16-1-0 (W-L-D) | Active | |
| Oscar Cota | “Elevation” | Heavyweight | 11-3-0 (W-L-D) | Active |
| Otari Tanzilovi | Featherweight | 10-2-0 (W-L-D) | Active | |
| Ottman Azaitar | “Bulldozer” | Lightweight | 13-3-0 (W-L-D) | Active |
| Oumar Sy | Light Heavyweight | 12-2-0 (W-L-D) | Active | |
| Ozzy Diaz | Middleweight | 10-4-0 (W-L-D) | Active | |
| Paddy Pimblett | “The Baddy” | Lightweight | 24-4-0 (W-L-D) | Active |
| Parker Porter | Heavyweight | 14-9-0 (W-L-D) | Active | |
| Pat Sabatini | Featherweight | 22-5-0 (W-L-D) | Active | |
| Patricia Alujas | Women's Strawweight | 9-3-0 (W-L-D) | Active | |
| Patricio Pitbull | “Pitbull” | Featherweight | 37-9-0 (W-L-D) | Active |
| Patrik White | “Prime Time” | Lightweight | 9-2-0 (W-L-D) | Active |
| Pauline Macias | Women's Strawweight | 4-1-0 (W-L-D) | Active | |
| Paulo Costa | “The Eraser” | Light Heavyweight | 16-4-0 (W-L-D) | Active |
| Paulo Renato Jr. | Light Heavyweight | 0-2-0 (W-L-D) | Active | |
| Payton Talbott | Bantamweight | 11-1-0 (W-L-D) | Active | |
| Pete Rodriguez | “Dead Game” | Welterweight | 5-2-0 (W-L-D) | Active |
| Peter Danesoe | Flyweight | 8-4-0 (W-L-D) | Active | |
| Peter Petties | “The Joker” | Featherweight | 5-3-0 (W-L-D) | Active |
| C Petr Yan | “No Mercy” | Bantamweight | 20-5-0 (W-L-D) | Active |
| Phil Hawes | “No Hype” | Middleweight | 12-6-0 (W-L-D) | Active |
| Philipe Lins | “Monstro” | Light Heavyweight | 18-5-0 (W-L-D) | Active |
| Piera Rodriguez | “La Fiera” | Women's Strawweight | 12-2-0 (W-L-D) | Active |
| Polyana Viana | “Dama de Ferro” | Women's Strawweight | 13-9-0 (W-L-D) | Active |
| Priscila Cachoeira | “Zombie Girl” | Women's Bantamweight | 13-9-0 (W-L-D) | Active |
| Puja Tomar | “Cyclone” | Women's Strawweight | 9-6-0 (W-L-D) | Active |
| Punahele Soriano | “Puna” | Welterweight | 13-4-0 (W-L-D) | Active |
| Quillan Salkilld | Lightweight | 12-1-0 (W-L-D) | Active | |
| RJ Harris | “The Hammer” | Heavyweight | 6-0-0 (W-L-D) | Active |
| Rafa Garcia | “Gifted” | Lightweight | 19-4-0 (W-L-D) | Active |
| Rafael Dos Anjos | Welterweight | 32-17-0 (W-L-D) | Active | |
| Rafael Estevam | “Macapa” | Bantamweight | 14-1-0 (W-L-D) | Active |
| Rafael Fiziev | “Ataman” | Lightweight | 14-5-0 (W-L-D) | Active |
| Rafael Tobias | “Bipolar” | Light Heavyweight | 14-2-0 (W-L-D) | Active |
| Rafael de Freitas | “Barata (Cockroach)” | Flyweight | 0-0-0 (W-L-D) | Active |
| Raimond Magomedaliev | Welterweight | 10-2-0 (W-L-D) | Active | |
| Rainn Guerrero | Women's Strawweight | 5-2-0 (W-L-D) | Active | |
| Ramazan Temirov | “Temurlan” | Flyweight | 19-3-0 (W-L-D) | Active |
| Rami Hamed | Welterweight | 13-3-0 (W-L-D) | Active | |
| Ramiro Jimenez | Featherweight | 11-0-0 (W-L-D) | Active | |
| Ramiz Brahimaj | Welterweight | 13-6-0 (W-L-D) | Active | |
| Ramon Taveras | “The Savage” | Featherweight | 10-4-0 (W-L-D) | Active |
| Rana Rudra Pratap Singh | Bantamweight | 11-2-0 (W-L-D) | Active | |
| Randy Brown | “Rudeboy” | Welterweight | 20-8-0 (W-L-D) | Active |
| Rani Yahya | Bantamweight | 28-12-1 (1 NC) | Active | |
| Raoni Barcelos | Bantamweight | 22-5-0 (W-L-D) | Active | |
| Raquel Pennington | “Rocky” | Women's Bantamweight | 16-10-0 (W-L-D) | Active |
| Raul Rosas Jr. | “El Nino Problema” | Bantamweight | 12-1-0 (W-L-D) | Active |
| Ravena Oliveira | “Kenoudy” | Women's Strawweight | 7-4-1 (W-L-D) | Active |
| Rayanne Dos Santos | Women's Strawweight | 14-9-0 (W-L-D) | Active | |
| Rei Tsuruya | Flyweight | 11-1-0 (W-L-D) | Active | |
| Reinier de Ridder | “RdR” | Middleweight | 21-4-0 (W-L-D) | Active |
| Renato Moicano | Lightweight | 21-7-1 (W-L-D) | Active | |
| Reyes Cortez | Bantamweight | 0-2-0 (W-L-D) | Active | |
| Rheza Arianto | Featherweight | 0-0-0 (W-L-D) | Active | |
| Ricardo Prasel | “Alemao” | Heavyweight | 10-2-0 (W-L-D) | Active |
| Richard Jacobi | Heavyweight | 6-1-1 (W-L-D) | Active | |
| Rick Palacios | “El Gallero” | Featherweight | 10-1-0 (W-L-D) | Active |
| Rickson Zenidim | Flyweight | 14-2-0 (W-L-D) | Active | |
| Ricky Calatayud | Flyweight | 16-2-0 (W-L-D) | Active | |
| Ricky Simon | Bantamweight | 22-7-1 (W-L-D) | Active | |
| Ricky Steele | Bantamweight | 6-0-0 (W-L-D) | Active | |
| Rico DiSciullo | Bantamweight | 9-2-0 (W-L-D) | Active | |
| Rico Farrington | Welterweight | 7-3-0 (W-L-D) | Active | |
| Rinya Nakamura | “Hybred” | Bantamweight | 10-1-0 (W-L-D) | Active |
| Rizvan Kuniev | Heavyweight | 13-3-1 (W-L-D) | Active | |
| Rob Font | Bantamweight | 22-10-0 (W-L-D) | Active | |
| Robbie Ring | Featherweight | 6-1-0 (W-L-D) | Active | |
| Robert Bryczek | Middleweight | 18-7-0 (W-L-D) | Active | |
| Robert Ruchala | “Faker” | Featherweight | 11-3-0 (W-L-D) | Active |
| Robert Valentin | “Robzilla” | Middleweight | 12-6-0 (W-L-D) | Active |
| Robert Whittaker | “The Reaper” | Light Heavyweight | 28-9-0 (W-L-D) | Active |
| Roberto Romero | “El Charro Negro” | Featherweight | 8-5-1 (W-L-D) | Active |
| Rodolfo Bellato | “Trator” | Light Heavyweight | 13-3-1 (2 NC) | Active |
| Rodolfo Vieira | Middleweight | 11-5-0 (W-L-D) | Active | |
| Rodrigo Lidio | Lightweight | 12-3-0 (W-L-D) | Active | |
| Rodrigo Sezinando | Welterweight | 9-2-0 (W-L-D) | Active | |
| Rodrigo Vera | “El Gato Loco” | Featherweight | 22-1-1 (W-L-D) | Active |
| Roman Dolidze | Middleweight | 15-5-0 (W-L-D) | Active | |
| Roman Kopylov | Middleweight | 15-5-0 (W-L-D) | Active | |
| Ronal Siahaan | Flyweight | 7-1-0 (W-L-D) | Active | |
| Ronaldo Rodriguez | “Lazy Boy” | Flyweight | 17-3-0 (W-L-D) | Active |
| Rongzhu | Lightweight | 28-6-0 (W-L-D) | Active | |
| Ronnie Lawrence | “The Heat” | Bantamweight | 8-2-0 (W-L-D) | Active |
| Rose Namajunas | “Thug” | Women's Flyweight | 15-8-0 (W-L-D) | Active |
| Roybert Echeverria | “The Unbroken” | Flyweight | 7-1-0 (W-L-D) | Active |
| Ryan Gandra | “Problema” | Middleweight | 10-1-0 (W-L-D) | Active |
| Ryan Hall | “The Wizard” | Featherweight | 9-2-0 (W-L-D) | Active |
| Ryan Loder | “Man of Steel” | Middleweight | 8-3-0 (W-L-D) | Active |
| Ryan Spann | “Superman” | Heavyweight | 24-11-0 (W-L-D) | Active |
| Said Nurmagomedov | Bantamweight | 18-5-0 (W-L-D) | Active | |
| Saimon Oliveira | Bantamweight | 18-7-0 (W-L-D) | Active | |
| Sam Hughes | “Sampage” | Women's Strawweight | 11-7-0 (W-L-D) | Active |
| Sam Patterson | Welterweight | 14-3-1 (W-L-D) | Active | |
| Samuel Sanches | Lightweight | 11-1-0 (W-L-D) | Active | |
| Sandra Lavado | Women's Strawweight | 10-3-0 (W-L-D) | Active | |
| Sang Hoon Yoo | Welterweight | 1-0-0 (W-L-D) | Active | |
| Sang Won Kim | Featherweight | 1-1-0 (W-L-D) | Active | |
| Santiago Luna | “BorderBoy” | Bantamweight | 8-1-0 (W-L-D) | Active |
| Santiago Ponzinibbio | “Argentine Dagger” | Welterweight | 31-9-0 (W-L-D) | Active |
| Saygid Izagakhmaev | Welterweight | 22-3-0 (W-L-D) | Active | |
| Sean Brady | Welterweight | 19-2-0 (W-L-D) | Active | |
| Sean Lally | “The Unpredictable One” | Welterweight | 7-3-0 (W-L-D) | Active |
| Sean Mcinerney | “Poopies” | Welterweight | 0-0-0 (W-L-D) | Active |
| Sean O'Malley | “Suga” | Bantamweight | 20-3-0 (W-L-D) | Active |
| Sean Sharaf | “The Smoke” | Heavyweight | 4-2-0 (W-L-D) | Active |
| C Sean Strickland | Middleweight | 31-7-0 (W-L-D) | Active | |
| Sean Woodson | “The Sniper” | Featherweight | 13-2-1 (W-L-D) | Active |
| Seokhyeon Ko | “The Korean Tyson” | Welterweight | 13-3-0 (W-L-D) | Active |
| SeongChan Hong | Lightweight | 9-2-0 (W-L-D) | Active | |
| Sergei Pavlovich | Heavyweight | 21-3-0 (W-L-D) | Active | |
| Sergey Morozov | Bantamweight | 19-5-0 (W-L-D) | Active | |
| Serghei Spivac | “Polar Bear” | Heavyweight | 18-6-0 (W-L-D) | Active |
| Serhiy Sidey | Bantamweight | 12-2-0 (W-L-D) | Active | |
| SeungGuk Choi | Flyweight | 7-3-0 (W-L-D) | Active | |
| Shaheen Santana | Lightweight | 6-1-0 (W-L-D) | Active | |
| Shamil Gaziev | Heavyweight | 14-3-0 (W-L-D) | Active | |
| Shane Collins | “Hollywood” | Featherweight | 8-0-0 (W-L-D) | Active |
| Shane Young | “Maraenui” | Featherweight | 13-8-0 (W-L-D) | Active |
| Shanelle Dyer | “The Nightmare” | Women's Strawweight | 7-1-0 (W-L-D) | Active |
| Shannon Ross | “The Turkish Delight” | Flyweight | 13-9-0 (W-L-D) | Active |
| Shara Magomedov | “Bullet” | Middleweight | 17-1-0 (W-L-D) | Active |
| Shauna Bannon | “Mama B” | Women's Strawweight | 7-3-0 (W-L-D) | Active |
| Shavkat Rakhmonov | “Nomad” | Welterweight | 19-0-0 (W-L-D) | Active |
| Sheldon Westcott | Welterweight | 10-3-1 (W-L-D) | Active | |
| Sherrard Blackledge | Lightweight | 5-1-0 (W-L-D) | Active | |
| Shi Ming | Women's Strawweight | 18-6-0 (W-L-D) | Active | |
| Shin Haraguchi | Lightweight | 8-2-0 (W-L-D) | Active | |
| Shonte Barnes | “Shyne” | Middleweight | 6-2-1 (W-L-D) | Active |
| Shuya Kamikubo | Bantamweight | 13-2-1 (W-L-D) | Active | |
| Sidney Outlaw | Welterweight | 8-4-0 (W-L-D) | Active | |
| Sim Kai Xiong | Flyweight | 7-2-0 (W-L-D) | Active | |
| Simon Biyong | Light Heavyweight | 7-1-0 (W-L-D) | Active | |
| Sodiq Yusuff | “Super” | Lightweight | 13-5-0 (W-L-D) | Active |
| Sofia Montenegro | “La Bruja” | Flyweight | 6-2-0 (W-L-D) | Active |
| Solomon Renfro | “The Black Dragon/King” | Welterweight | 8-2-0 (W-L-D) | Active |
| Song Kenan | “The Assassin” | Welterweight | 22-9-0 (W-L-D) | Active |
| Song Yadong | “Kung Fu Kid” | Bantamweight | 23-9-1 (W-L-D) | Active |
| Sovannahry Em | Women's Bantamweight | 3-1-0 (W-L-D) | Active | |
| Stephanie Frausto | Women's Strawweight | 8-7-0 (W-L-D) | Active | |
| Stephanie Luciano | “Rondinha” | Women's Strawweight | 7-2-1 (W-L-D) | Active |
| Stephen Thompson | “Wonderboy” | Welterweight | 17-9-1 (W-L-D) | Active |
| Steve Erceg | “Astroboy” | Flyweight | 14-4-0 (W-L-D) | Active |
| Steve Garcia | “Mean Machine” | Featherweight | 19-6-0 (W-L-D) | Active |
| Steve Regman | “The Predator” | Middleweight | 9-3-0 (W-L-D) | Active |
| Steven Asplund | “Concrete” | Heavyweight | 7-2-0 (W-L-D) | Active |
| Steven Koslow | “Obi Won Shinobi The Pillow” | Bantamweight | 6-1-0 (W-L-D) | Active |
| Steven Nguyen | “The Ninja” | Featherweight | 10-2-0 (W-L-D) | Active |
| Stewart Nicoll | “Kakamora” | Flyweight | 8-4-0 (W-L-D) | Active |
| SuYoung You | “You-Jitsu” | Bantamweight | 16-4-0 (W-L-D) | Active |
| Sumit Kumar | Flyweight | 8-1-0 (W-L-D) | Active | |
| Sumudaerji | “The Tibetan Eagle” | Flyweight | 19-7-0 (W-L-D) | Active |
| Tabatha Ricci | “Baby Shark” | Women's Strawweight | 12-5-0 (W-L-D) | Active |
| Tagir Ulanbekov | Flyweight | 17-3-0 (W-L-D) | Active | |
| Tahir Abdullayev | “Tank” | Welterweight | 20-3-0 (W-L-D) | Active |
| Taila Santos | Women's Flyweight | 19-3-0 (W-L-D) | Active | |
| Tainara Lisboa | “Thai Panther” | Women's Bantamweight | 7-4-0 (W-L-D) | Active |
| Talita Alencar | “Problem Child” | Women's Strawweight | 8-1-1 (W-L-D) | Active |
| Tallison Teixeira | “Xicao” | Heavyweight | 9-2-0 (W-L-D) | Active |
| Taneisha Tennant | Featherweight | 5-1-0 (W-L-D) | Active | |
| Tanner Boser | “The Bulldozer” | Heavyweight | 22-11-1 (W-L-D) | Active |
| Tatiana Suarez | Women's Strawweight | 13-1-0 (W-L-D) | Active | |
| Tatsuro Taira | “The Best” | Flyweight | 18-2-0 (W-L-D) | Active |
| Tereza Bledá | Women's Flyweight | 7-2-0 (W-L-D) | Active | |
| Terrance McKinney | “T. Wrecks” | Lightweight | 18-9-0 (W-L-D) | Active |
| Terrence Mitchell | Bantamweight | 14-4-0 (W-L-D) | Active | |
| Testy Test | “Testy” | Heavyweight | 0-0-0 (W-L-D) | Active |
| Themba Gorimbo | “Mamba” | Welterweight | 14-7-0 (W-L-D) | Active |
| Theodor Berggren | “Simba” | Welterweight | 8-4-0 (W-L-D) | Active |
| Thomas Paull | Lightweight | 11-4-0 (W-L-D) | Active | |
| Thomas Petersen | “The Train” | Heavyweight | 11-4-0 (W-L-D) | Active |
| Tiffany Masters | “Rainbow Renegade” | Women's Strawweight | 2-1-0 (W-L-D) | Active |
| Tim Elliott | Flyweight | 22-14-1 (W-L-D) | Active | |
| Tim Means | “The Dirty Bird” | Welterweight | 33-17-1 (1 NC) | Active |
| Timmy Cuamba | “Twilight” | Bantamweight | 10-4-0 (W-L-D) | Active |
| Timothy Thomas | “The Gorilla” | Heavyweight | 0-0-0 (W-L-D) | Active |
| Toby Misech | “2Quick” | Featherweight | 9-5-0 (W-L-D) | Active |
| Tofiq Musayev | Lightweight | 23-6-0 (W-L-D) | Active | |
| C Tom Aspinall | Heavyweight | 15-3-0 (2 NC) | Active | |
| Tom Nolan | “Big Train” | Lightweight | 11-1-0 (W-L-D) | Active |
| Tommy Gantt | Lightweight | 12-0-0 (W-L-D) | Active | |
| Tommy McMillen | “Gun” | Featherweight | 11-0-0 (W-L-D) | Active |
| Top Noi Kiwram | “Tiger Muay Thai” | Flyweight | 9-5-0 (W-L-D) | Active |
| Torrez Finney | “The Punisher” | Middleweight | 11-1-0 (W-L-D) | Active |
| Toshiomi Kazama | Bantamweight | 11-5-0 (W-L-D) | Active | |
| Tracy Cortez | Women's Flyweight | 12-4-0 (W-L-D) | Active | |
| Travis Browne | “Hapa” | Heavyweight | 18-7-1 (W-L-D) | Active |
| Tresean Gore | “Mr. Vicious” | Middleweight | 7-4-0 (W-L-D) | Active |
| Trevor Peek | Featherweight | 9-3-0 (W-L-D) | Active | |
| Trey Ogden | “Shamurai” | Lightweight | 18-7-0 (W-L-D) | Active |
| Trey Waters | “The Truth” | Welterweight | 9-2-0 (W-L-D) | Active |
| Tre’ston Vines | “TVTime” | Middleweight | 10-4-0 (W-L-D) | Active |
| Tucker Lutz | “Top Gun” | Featherweight | 12-4-0 (W-L-D) | Active |
| Ty Flores | Light Heavyweight | 7-3-0 (W-L-D) | Active | |
| Ty Miller | “Thriller” | Welterweight | 7-0-0 (W-L-D) | Active |
| Tyrell Fortune | Heavyweight | 18-3-0 (W-L-D) | Active | |
| Umar Nurmagomedov | Bantamweight | 20-1-0 (W-L-D) | Active | |
| Uran Satybaldiev | “Gorilla” | Light Heavyweight | 9-1-0 (W-L-D) | Active |
| Uroš Medić | “The Doctor” | Welterweight | 13-3-0 (W-L-D) | Active |
| Vagner Rocha | “Ceara” | Lightweight | 14-4-0 (W-L-D) | Active |
| Val Woodburn | “The Animal” | Welterweight | 7-2-0 (W-L-D) | Active |
| C Valentina Shevchenko | “Bullet” | Women's Flyweight | 26-4-1 (W-L-D) | Active |
| Valter Walker | “The Clean Monster” | Heavyweight | 15-1-0 (W-L-D) | Active |
| Vanessa Demopoulos | “Lil Monster” | Women's Flyweight | 11-8-0 (W-L-D) | Active |
| Veronica Hardy | Women's Flyweight | 10-5-1 (W-L-D) | Active | |
| Vicente Luque | “The Silent Assassin” | Middleweight | 24-12-1 (W-L-D) | Active |
| Victor Dias | “Crazy Horse” | Flyweight | 11-3-0 (W-L-D) | Active |
| Victor Henry | “La Mangosta” | Bantamweight | 25-7-0 (1 NC) | Active |
| Victor Madrigal | Bantamweight | 15-5-0 (W-L-D) | Active | |
| Vineesh Subrahmanyan | “Vini” | Light Heavyweight | 0-0-0 (W-L-D) | Active |
| Vinicius Cenci | Lightweight | 7-2-0 (W-L-D) | Active | |
| Vinicius Oliveira | “LokDog” | Featherweight | 24-4-0 (W-L-D) | Active |
| Virna Jandiroba | “Carcara” | Women's Strawweight | 23-4-0 (W-L-D) | Active |
| Vitor Petrino | Heavyweight | 14-2-0 (W-L-D) | Active | |
| Vlasto Cepo | Middleweight | 14-3-0 (W-L-D) | Active | |
| Volkan Oezdemir | “No Time” | Light Heavyweight | 21-8-0 (W-L-D) | Active |
| Waldo Cortes Acosta | “Salsa Boy” | Heavyweight | 17-3-0 (W-L-D) | Active |
| Wang Cong | “The Joker” | Women's Flyweight | 10-1-0 (W-L-D) | Active |
| Wellington Turman | “The Prodigy” | Welterweight | 18-8-0 (W-L-D) | Active |
| Wendri Patilima | Lightweight | 0-1-0 (W-L-D) | Active | |
| Wes Schultz | “Party Time” | Middleweight | 9-3-0 (W-L-D) | Active |
| William Gomis | “Jaguar” | Featherweight | 15-4-0 (W-L-D) | Active |
| Willian Souza | Bantamweight | 0-0-0 (W-L-D) | Active | |
| Wuziazibieke Jiahefu | Featherweight | 29-12-1 (W-L-D) | Active | |
| Xiao Long | Bantamweight | 27-11-0 (W-L-D) | Active | |
| Yadier del Valle | “The Cuban Problem” | Featherweight | 10-1-0 (W-L-D) | Active |
| Yair Rodriguez | “El Pantera” | Featherweight | 21-6-0 (1 NC) | Active |
| Yan Xiaonan | Women's Strawweight | 19-5-0 (W-L-D) | Active | |
| Yana Santos | Women's Bantamweight | 17-8-0 (W-L-D) | Active | |
| Yaroslav Amosov | Welterweight | 30-1-0 (W-L-D) | Active | |
| Yazan Hajeh | “Yazzle Dazzle” | Featherweight | 6-1-0 (W-L-D) | Active |
| Yazmin Jauregui | Women's Strawweight | 11-2-0 (W-L-D) | Active | |
| YiSak Lee | “The Tank” | Middleweight | 8-2-0 (W-L-D) | Active |
| Yizha | Featherweight | 26-6-0 (W-L-D) | Active | |
| Yousri Belgaroui | Middleweight | 10-3-0 (W-L-D) | Active | |
| Youssef Zalal | “The Moroccan Devil” | Featherweight | 18-6-1 (W-L-D) | Active |
| Yuneisy Duben | Women's Flyweight | 6-2-0 (W-L-D) | Active | |
| Zach Borrego | Middleweight | 0-1-0 (W-L-D) | Active | |
| Zach Zane | “Dub-Z” | Welterweight | 10-7-0 (W-L-D) | Active |
| Zachary Reese | “Savage” | Middleweight | 10-4-0 (W-L-D) | Active |
| Zarah Fairn | “Infinite” | Women's Bantamweight | 6-6-0 (W-L-D) | Active |
| Zhang Mingyang | “Mountain Tiger” | Light Heavyweight | 19-8-0 (W-L-D) | Active |
| Zhang Weili | “Magnum” | Women's Flyweight | 26-4-0 (W-L-D) | Active |
| Zhu Kangjie | Featherweight | 21-5-0 (W-L-D) | Active |