Fighters — J
616 tracked fighters starting with J.
- J.C. Cottrell17-5-0 · Lightweight · UFC
- J.T. Taylor7-7-1 · Welterweight · UCS
- JJ Aldrich15-7-0 · Flyweight · UFC
- JP Buys9-6-0 · Bantamweight · UFC
- Jack Cartwright14-2-0 · Bantamweight · PFL
- Jack Della Maddalena18-4-0 · Welterweight · UFC
- Jack Grant21-9-0 · Welterweight · OKMMA
- Jack Hermansson24-10-0 · Middleweight · UFC
- Jack Jenkins14-4-0 · Featherweight · UFC
- Jack Marshman23-10-0 · Middleweight · UFC
- Jack May11-8-0 · Heavyweight · BFC
- Jack McCloughlin2-1-0 · Bantamweight · CWFC
- Jack McGlaughlin0-0-0 · Pancrase
- Jack Morrison0-3-0 · Light Heavyweight · GC
- Jack Nilson2-6-0 · Heavyweight · WEF
- Jack Shore17-3-0 · Featherweight · UFC
- Jackie Lee0-1-0 · Light Heavyweight · UFC
- Jackson Glass4-0-0 · Featherweight · PFL
- Jackson McVey8-2-0 · Middleweight · UFC
- Jackson Ross3-1-0 · Heavyweight · OKMMA
- Jacob Kilburn8-7-0 · Lightweight · AFS
- Jacob Malkoun10-3-0 · Middleweight · UFC
- Jacob Noe11-3-0 · Light Heavyweight · BFC
- Jacob Pais1-1-0 · Featherweight · PFL
- Jacob Rosales15-9-0 · Lightweight · A1C
- Jacob Silva11-10-0 · Flyweight · FFC
- Jacob Volkmann19-7-0 · Welterweight · The Academy MN
- Jacobe Smith12-0-0 · Welterweight · UFC
- Jacqueline Cavalcanti10-2-0 · Bantamweight · UFC
- Jade Masson-Wong3-3-0 · Flyweight · MVP
- Jae Hoon Lee3-2-0 · Flyweight · RFF
- Jae Hyun Park7-3-0 · Lightweight · ZFN
- Jafel Filho17-5-0 · Flyweight · UFC
- Jai Herbert14-6-1 · Lightweight · UFC
- Jai Opetaia30-0-0 · Cruiserweight · BOXING
- Jaida Harshman1-1-0 · Flyweight · LFA
- Jailton Almeida22-5-0 · Heavyweight · ACA
- Jaime Alvarez8-4-0 · Flyweight · CG
- Jaimelene Nievera7-5-0 · Flyweight · CAMMA
- Jainer Ruiz-Jimenez0-0-0 · Light Heavyweight · LFA
- Jair Farias10-1-0 · Featherweight · DWCS
- Jairzinho Rozenstruik15-6-0 · Heavyweight · DBX
- Jake Collier14-10-0 · Heavyweight · UFC
- Jake Ellenberger31-15-0 · Welterweight · UFC
- Jake Hadley12-6-0 · Flyweight · PFL
- Jake Hecht11-4-0 · Welterweight · UFC
- Jake Lindsey15-10-0 · Welterweight · BKFC
- Jake Matthews23-8-0 · Welterweight · UFC
- Jake McHugh4-1-0 · Featherweight · CWFC
- Jake O'Brien15-4-0 · Light Heavyweight · FFC
- Jake Paul12-2-0 · Light Heavyweight · Boxing
- Jake Rosholt12-5-0 · Light Heavyweight · XFN
- Jake Shields33-11-1 · Welterweight · PFL
- Jake Woodley8-1-0 · Middleweight · LFA
- Jakub Batfalsky10-2-0 · Featherweight · OKMMA
- Jakub Kaszuba16-0-0 · Lightweight · PFL
- Jakub Tichota6-5-0 · Lightweight · OKMMA
- Jakub Wikłacz18-3-2 · Bantamweight · UFC
- Jakub Zacpal0-0-0 · Lightweight · OKMMA
- Jalin Turner16-9-0 · Lightweight · UFC
- Jamahal Hill12-4-0 · Light Heavyweight · UFC
- Jamal Pogues11-5-0 · Heavyweight · UFC
- Jamall Emmers23-8-0 · Featherweight · UFC
- Jameel Massouh26-9-0 · Featherweight · CFFC
- Jamelle Jones15-8-0 · Light Heavyweight · PFL
- James Barnes14-5-0 · Bantamweight · DWCS
- James Bochnovic10-5-0 · Middleweight · PFC
- James Gabert6-4-0 · Middleweight · ROC
- James Gallagher12-3-0 · Featherweight · PFL
- James Giboo13-5-0 · Welterweight · MCC
- James Gray Jr.4-2-0 · Bantamweight · DWCS
- James Hammortree6-3-0 · Light Heavyweight · RFC
- James Head9-4-0 · Welterweight · UFC
- James Irvin17-10-0 · Middleweight · GC
- James Krause28-8-0 · Welterweight · UFC
- James Lee15-3-0 · Light Heavyweight · TXC
- James Llontop14-5-0 · Lightweight · UFC
- James Martin5-1-0 · Welterweight · LFA
- James McSweeney15-18-0 · Heavyweight · MFC
- James Moontasri9-5-0 · Welterweight · UFC
- James Mulheron11-4-0 · Heavyweight · BFC
- James Te Huna16-9-0 · Middleweight · UFC
- James Terry20-11-0 · Welterweight · BFC
- James Thompson20-17-0 · Heavyweight · BFC
- James Toney0-1-0 · Heavyweight · UFC
- James Vake7-3-0 · Welterweight · PFL
- James Vick13-6-0 · Welterweight · XMMA
- James Wade4-11-0 · Light Heavyweight · CC
- James Wallace9-4-0 · Lightweight · AMF
- James Wilks7-4-0 · Welterweight · UFC
- James Zikic21-10-2 · Middleweight · SLAM
- Jamey Simmons7-4-0 · Bantamweight · UFC
- Jamey-Lyn Horth9-3-0 · Flyweight · UFC
- Jamie Colleen Miller5-4-0 · Strawweight · LFA
- Jamie Houston3-0-0 · Middleweight · SFC
- Jamie Moyle4-4-0 · Flyweight · IFC
- Jamie Mullarkey18-9-0 · Lightweight · UFC
- Jamie Pickett13-11-0 · Middleweight · UFC
- Jamie Siraj14-4-0 · Featherweight · UFC
- Jamie Varner21-11-1 · Lightweight · UFC
- Jamie Yager9-4-0 · Welterweight · PFC
- Jan Błachowicz29-12-2 · Light Heavyweight · UFC
- Jan Finney11-14-0 · Lightweight · BFC
- Jan Nortje2-6-0 · Super Heavyweight · DREAM
- Jan Stanovský8-3-0 · Welterweight · OKMMA
- Janaina Silva5-1-0 · Strawweight · DWCS
- Janay Harding6-8-0 · Featherweight · BP
- Jansey Silva8-3-0 · Middleweight · LFA
- Jaqueline Amorim11-2-0 · Strawweight · UFC
- Jared Cannonier18-10-0 · Middleweight · UFC
- Jared Gooden23-12-0 · Welterweight · PFL
- Jared Gordon21-9-0 · Lightweight · UFC
- Jared Hamman14-6-0 · Light Heavyweight · WSOF
- Jared Papazian20-14-0 · Bantamweight · LOXF
- Jared Rollins8-4-0 · Middleweight · UFC
- Jared Rosholt20-8-0 · Heavyweight · PFL
- Jared Vanderaa17-11-0 · Heavyweight · LOXF
- Jarjis Danho6-1-1 · Heavyweight · UFC
- Jarno Errens15-6-1 · Featherweight · UFC
- Jarrah Hussein Al-Silawi21-8-0 · Middleweight · PFL
- Jarred Brooks20-3-0 · Flyweight · ONE
- Jarrod Kwitty2-2-0 · Middleweight ·
- Jasmine Jasudavicius15-4-0 · Flyweight · UFC
- Jason Black23-4-1 · Welterweight · UFC
- Jason Blackford3-3-0 · Welterweight · HRMMA
- Jason Brilz23-6-1 · Light Heavyweight · DCS
- Jason Day19-12-0 · Middleweight · Canadian Martial Arts Centre
- Jason DeLucia33-21-1 · Light Heavyweight · WFL
- Jason Dent22-13-0 · Welterweight · PMMA
- Jason Fairn4-5-0 · Heavyweight · AFC
- Jason Gilliam15-9-0 · Welterweight · ECC
- Jason Glaza3-2-0 · Heavyweight · GC
- Jason Godsey16-16-0 · Heavyweight · FF
- Jason Gonzalez11-5-0 · Lightweight · UFC
- Jason Guida19-28-0 · Heavyweight · BFC
- Jason High23-8-0 · Lightweight · FAC
- Jason Jackson20-6-0 · Middleweight · MVP
- Jason Knight23-8-0 · Featherweight · TUF
- Jason Lambert26-13-0 · Light Heavyweight · BFC
- Jason MacDonald25-16-0 · Middleweight · UFC
- Jason McLean6-7-0 · Bantamweight · ROC
- Jason Miller23-10-0 · Middleweight · VFC
- Jason Novelli12-3-1 · Lightweight · X1
- Jason Reinhardt20-3-0 · Bantamweight · UFC
- Jason Riley10-8-0 · Heavyweight · JDFS
- Jason Saggo13-4-0 · Lightweight · BTC
- Jason Sharp3-3-0 · Light Heavyweight · RF
- Jason Suttie0-1-0 · Heavyweight · PFC
- Jason Tan5-3-0 · Welterweight · UFC
- Jason Thacker0-1-0 · Middleweight · UFC
- Jason Von Flue14-12-1 · Welterweight · TWC
- Jason Witt19-9-0 · Middleweight · UFC
- Jason Young9-6-0 · Featherweight · UFC
- Javad Mahjoub5-0-0 · Heavyweight · UFC
- Javi Alanis0-4-0 · TC
- Javid Basharat16-2-0 · Bantamweight · PFL
- Javier Reyes23-6-0 · Featherweight · UFC
- Javier Vazquez16-5-0 · Featherweight ·
- Jay Cucciniello8-3-0 · Featherweight · OKMMA
- Jay Hieron23-7-0 · Welterweight · UFC
- Jay Jay Wilson12-2-0 · Lightweight · PFL
- Jay Perrin13-8-0 · Bantamweight · CTFC
- Jay Silva12-13-1 · Heavyweight · LOXF
- Jean Do Santos9-3-0 · Lightweight · PFL
- Jean Matsumoto18-2-0 · Bantamweight · UFC
- Jean Silva17-3-0 · Featherweight · UFC
- Jean-Francois Lenogue16-17-3 · Middleweight · WFC
- Jean-Paul Lebosnoyani11-2-0 · Welterweight · UFC
- Jeff Bedard13-3-0 · Bantamweight · NFC
- Jeff Cox10-7-0 · Lightweight · ICF
- Jeff Curran36-18-1 · Bantamweight · VFC
- Jeff Hougland10-6-0 · Bantamweight · UFC
- Jeff Hughes10-4-0 · Heavyweight · UFC
- Jeff Joslin5-3-0 · Welterweight · UFC
- Jeff Molina11-2-0 · Flyweight · UFC
- Jeff Monson60-26-1 · Heavyweight · DMMA
- Jeff Newton4-2-0 · Light Heavyweight · UFC
- Jeff Terry2-3-0 · Light Heavyweight · PFC
- Jefferson Nascimento13-1-0 · Lightweight · UFC
- Jeisla Chaves8-1-0 · Flyweight · UFC
- Jeka Saragih14-5-0 · Featherweight · UFC
- Jena Bishop11-3-0 · Flyweight · PFL
- Jenel Lausa7-8-0 · Flyweight · BCF
- Jenna Castillo1-0-0 · Flyweight · SF
- Jennifer Gonzalez0-1-0 · Featherweight · OFC
- Jennifer Maia23-10-1 · Flyweight · IFC
- Jens Pulver27-19-1 · Bantamweight · SC
- Jeong Yeong Lee11-3-0 · Featherweight · UFC
- Jeremia Siregar7-7-0 · Flyweight · OPMMA
- Jeremiah Billington11-2-0 · Light Heavyweight ·
- Jeremiah Metcalf13-7-0 · Welterweight · UPC
- Jeremiah O'Neal13-25-0 · Heavyweight · BFC
- Jeremiah Riggs7-8-0 · Middleweight · BFC
- Jeremiah Wells14-4-1 · Welterweight · UFC
- Jeremie Holloway10-6-0 · Middleweight · XMMA
- Jeremy Boczulak0-2-0 · Heavyweight · SF
- Jeremy Freitag6-10-0 · Light Heavyweight · IMMA
- Jeremy Hamilton9-2-0 · Welterweight · CFX
- Jeremy Horn92-22-5 · Middleweight · EC
- Jeremy Jackson9-5-0 · Welterweight · IBJJF
- Jeremy Kennedy19-4-0 · Featherweight · BFC
- Jeremy Kimball19-11-0 · Heavyweight · OKMMA
- Jeremy Landowski2-0-0 · Welterweight · LFA
- Jeremy Lang21-2-0 · Welterweight · EC
- Jeremy Larsen8-5-0 · Featherweight · UFC
- Jeremy May13-12-0 · Heavyweight · CES
- Jeremy Stephens29-23-0 · Lightweight · BKFC
- Jeremy Tavares1-6-0 · Bantamweight · KOTC
- Jeremy Umphries5-2-0 · Welterweight · JFC
- Jeremy Wallace4-6-0 · Bantamweight ·
- Jeri Sitzes3-1-0 · Flyweight · SF
- Jermaine Andre14-4-0 · Middleweight ·
- Jerome Rivera10-6-0 · Flyweight · UFC
- Jerrel Venetiaan4-3-0 · Light Heavyweight ·
- Jerrod Sanders16-4-0 · Bantamweight · C3
- Jerron Peoples4-3-0 · Middleweight · SF
- Jerry Bohlander11-4-0 · Light Heavyweight · GC
- Jess Bouscal3-2-0 · Lightweight · SF
- Jess Liaudin20-11-0 · Welterweight · TLCF
- Jessamyn Duke3-5-0 · Bantamweight · IFC
- Jesse Bongfeldt17-6-1 · Middleweight · RITC
- Jesse Butler12-6-0 · Bantamweight · UFC
- Jesse Finney5-1-0 · Welterweight · Finney's HIT Squad
- Jesse Forbes15-5-0 · Middleweight · CB
- Jesse Fujarczyk2-2-0 · Heavyweight · SF
- Jesse Gillespie3-2-0 ·
- Jesse Lennox14-4-0 · Welterweight · UFC
- Jesse Moreng9-1-0 · Lightweight · Arizona Combat Sports
- Jesse Murray10-6-0 · Light Heavyweight · AFP
- Jesse Ronson28-12-0 · Welterweight · BTC
- Jesse Sanders23-7-0 · Welterweight · TRMMA
- Jesse Stirn16-6-0 · Featherweight · PFL
- Jesse Strader7-4-0 · Bantamweight · UNF
- Jesse Taylor33-17-0 · Welterweight · BFL
- Jessica Aguilar20-10-0 · Strawweight · RFF
- Jessica Eye15-11-0 · Flyweight · UFC
- Jessica Penne14-8-0 · Strawweight · UFC
- Jessica Rakoczy1-5-0 · Strawweight · UFC
- Jessica-Rose Clark11-9-0 · Bantamweight · DBX
- Jessie Rosas8-1-0 · Bantamweight · UFC
- Jessin Ayari16-6-0 · Lightweight · INNFERNO
- Jesus Aguilar12-4-0 · Flyweight · UFC
- Jesus Gutierrez8-9-0 · Flyweight · UMMA
- Jesus Pinedo26-8-1 · Featherweight · PFL
- Jhanlo Mark Sangiao7-2-0 · Featherweight · ONE
- Jhoandri Toribio0-1-0 · Lightweight · Inka MMA
- Jhonata Diniz9-2-0 · Heavyweight · UFC
- Jhonata Silva9-2-0 · Strawweight · SB
- Jhonoven Pati8-6-0 · Middleweight · MCC
- Jhony Gregory11-5-0 · Middleweight · PFL
- Ji Yeon Kim9-7-2 · Flyweight · UFC
- Jiahefu Wuziazibieke32-12-1 · Lightweight · OPMMA
- Jianping Yang11-4-1 · Featherweight · KLF
- Jihin Radzuan10-6-0 · Strawweight · ONE
- Jim Alers14-5-0 · Featherweight · CG
- Jim Miller39-19-0 · Lightweight · UFC
- Jim Mullen0-2-0 · Heavyweight · FNE
- Jim Wallhead33-12-0 · Welterweight · CWFC
- Jimi Manuwa17-6-0 · Light Heavyweight · UFC
- Jimmie Rivera23-5-0 · Bantamweight · UFC
- Jimmy Ambriz17-21-1 · Super Heavyweight · X1
- Jimmy Crute14-4-2 · Light Heavyweight · UFC
- Jimmy Flick17-9-0 · Flyweight · UFC
- Jimmy Lawson4-2-0 · Heavyweight · DWCS
- Jimmy Quinlan3-1-1 · Middleweight · NEF
- Jimmy Wallhead33-12-0 · Welterweight · CWFC
- Jimy Hettes11-3-0 · Featherweight · UFC
- Jin Oh Kim0-4-0 · Light Heavyweight · M-1
- Jin Soo Son9-4-0 · Bantamweight · UFC
- Jin Tanaka0-0-0 · Flyweight · RFF
- Jingliang Li19-9-0 · Welterweight · UFC
- Jingnan Xiong19-3-0 · Flyweight · UFC
- Jinh Yu Frey11-10-0 · Strawweight · UFC
- Jiniushiyue17-4-0 · Flyweight · RUFC
- Jinnosuke Kashimura12-6-0 · Bantamweight · RFF
- Jiří Procházka32-6-1 · Light Heavyweight · UFC
- Joachim Christensen15-9-0 · Light Heavyweight · FEMFP
- Joachim Hansen23-14-1 · Lightweight · Shooto
- Joanderson Brito19-5-1 · Featherweight · UFC
- Joanna Jędrzejczyk16-5-0 · Strawweight · UFC
- Joanne Wood17-8-0 · Flyweight · UFC
- Joao Elias17-4-1 · Flyweight · DWCS
- Joao Pierini4-1-0 · Welterweight · UFC
- Joao Roque7-2-4 · Featherweight · Shooto
- Joao Victor Zaiden10-3-0 · Light Heavyweight · JFC
- Joaquim Silva14-5-0 · Lightweight · UFC
- Joaquin Buckley21-8-0 · Welterweight · UFC
- Joaquin Garcia3-1-0 · Middleweight · LFA
- Joby Sanchez13-5-0 · Bantamweight · CAMMA
- Jocelyn Jones-Lybarger6-4-0 · Strawweight · BKFC
- Jodie Esquibel6-7-0 · Strawweight · IFC
- Joe Benoit11-4-0 · Welterweight · UCL
- Joe Brammer7-3-1 · Lightweight ·
- Joe Camacho13-19-3 · Lightweight · BFC
- Joe Cason9-1-0 · Heavyweight · MCC
- Joe Charles6-13-0 · Heavyweight · Pancrase
- Joe Doerksen51-16-0 · Middleweight · KOTC
- Joe Duarte10-4-0 · Lightweight · BFC
- Joe Duffy16-5-0 · Lightweight · UFC
- Joe Ellenberger15-2-0 · Lightweight · UFC
- Joe Giannetti16-5-1 · Lightweight · CTFC
- Joe Gigliotti7-3-0 · Middleweight · XMMA
- Joe Hiramoto4-2-0 · Flyweight · RFF
- Joe Hurley12-5-0 · Lightweight · CCFC
- Joe Jordan48-14-2 · Welterweight · RFA
- Joe Lauzon28-15-0 · Lightweight · UFC
- Joe Martin6-8-0 · Welterweight ·
- Joe Merritt7-2-0 · Welterweight · GC
- Joe Moreira2-2-0 · Light Heavyweight ·
- Joe Moriera0-1-0 · Heavyweight
- Joe Neal6-5-0 · Bantamweight · CAMMA
- Joe Pardo4-6-0 · Heavyweight · RITC
- Joe Pearson45-31-1 · Featherweight · GFS
- Joe Proctor11-5-0 · Welterweight · UFC
- Joe Pyfer16-3-0 · Middleweight · UFC
- Joe Ray14-6-0 · Welterweight · KLF
- Joe Riggs49-18-1 · Welterweight · ROC
- Joe Schilling4-7-0 · Light Heavyweight · PFL
- Joe Slick16-5-3 · Light Heavyweight · RINGS
- Joe Solecki13-6-0 · Lightweight · UFC
- Joe Son0-4-0 · Heavyweight · PFC
- Joe Soto18-7-0 · Bantamweight · UFC
- Joe Stevenson33-16-0 · Lightweight · TUF
- Joe Taimanglo24-9-1 · Bantamweight · AFC
- Joe Vedepo20-10-0 · Light Heavyweight · EFL
- Joe Veres4-3-0 · Lightweight · UFC
- Joe Wilk19-13-0 · Featherweight · VFC
- Joel Alvarez23-5-0 · Lightweight · UFC
- Joel Sutton2-4-1 · Light Heavyweight · ISCF
- Joel Thomas5-1-0 · Welterweight · EF
- Joey Armstrong5-2-0 ·
- Joey Beltran18-15-0 · Light Heavyweight · S70
- Joey Gambino9-2-0 · Featherweight · UFC
- Joey Gilbert2-3-1 · Lightweight · IC
- Joey Gomez6-3-0 · Bantamweight · CES
- Joey Hart9-4-0 · Welterweight · LFA
- Joey Roberts0-0-0 · Bantamweight · DZ
- Joey Ruquet11-5-0 · Featherweight · PFL
- Joey Villasenor29-10-0 · Welterweight · JMMAS
- Johil de Oliveira17-16-1 · Lightweight · SB
- John Adajar6-3-0 · Welterweight · UAEW
- John Albert6-5-0 · Bantamweight · UFC
- John Alessio35-17-0 · Lightweight · BFC
- John Allan18-9-0 · Light Heavyweight
- John Campetella0-1-0 · Heavyweight · UFC
- John Castañeda21-8-1 · Bantamweight · UFC
- John Cholish8-3-0 · Lightweight · UFC
- John Clarke8-2-0 · Middleweight · CFX
- John Cofer8-4-0 · Featherweight · XFC
- John Devine6-4-0 · Heavyweight · SF
- John Dixson15-22-0 · Super Heavyweight ·
- John Dodson24-14-0 · Flyweight · RFF
- John Donaldson0-1-0 · Featherweight · VFS
- John Dowdy0-1-0 · Heavyweight · FCFF
- John Doyle11-22-0 · Light Heavyweight · CES
- John Elam2-0-0 · Middleweight ·
- John Franchi6-2-0 · Featherweight · RWMMA
- John Garza6-2-0 · Bantamweight · UFC
- John Gunderson35-16-2 · Featherweight · RITC
- John Gunther5-1-0 · Lightweight · UFC
- John Halverson16-8-0 · Lightweight · MCC
- John Hathaway18-3-0 · Welterweight · OKMMA
- John Hosman18-8-1 · Bantamweight · NAFC
- John Howard29-19-1 · Welterweight · XMMA
- John Kolosci15-9-0 · Lightweight · XFC
- John Kuhner1-2-0 · Welterweight · SF
- John Lewis3-4-3 · Welterweight · UFC
- John Lineker37-11-0 · Featherweight · ONE
- John MaCalolooy4-1-0 · Bantamweight · Bellator MMA
- John Maguire26-13-0 · Welterweight · CS
- John Makdessi18-9-0 · Lightweight · UFC
- John Marsh8-7-0 · Heavyweight · BF
- John Matua1-4-0 · Super Heavyweight · KOTC
- John Moraga19-7-0 · Flyweight · UFC
- John Paul Elias3-1-0 · Light Heavyweight · BFC
- John Phillips22-11-0 · Middleweight · UFC
- John Polakowski2-2-0 · Lightweight · UFC
- John Renken18-28-4 · Middleweight · HnS
- John Richard3-6-1 · Heavyweight · WFC
- John Salgado4-8-1 · Welterweight · BFC
- John Salter19-6-0 · Middleweight · BFC
- John Teixeira27-9-2 · Featherweight · ACA
- John Yannis10-5-0 · Bantamweight · UFC
- John Yoo0-1-0 · Bantamweight · BFC
- John-Olav Einemo6-3-0 · Heavyweight · UFC
- Johnny Bedford23-14-1 · Bantamweight · ZP
- Johnny Case30-10-1 · Welterweight · RFF
- Johnny Eblen18-1-0 · Middleweight · PFL
- Johnny Eduardo28-13-0 · Bantamweight · UFC
- Johnny Munoz Jr.14-4-0 · Featherweight · UWCM
- Johnny Rees13-5-0 · Middleweight · PMMA
- Johnny Rhodes2-1-0 · Heavyweight · UFC
- Johnny Sampaio3-1-0 · Lightweight · WEC
- Johnny Walker22-10-0 · Light Heavyweight · UFC
- Johny Hendricks18-8-0 · Middleweight · UFC
- Joilton Lutterbach38-9-0 · Middleweight · BCF
- Joji Goto21-9-0 · Bantamweight · RFF
- Jon Di Bella0-0-0 · Flyweight · ONE
- Jon Fitch32-8-2 · Welterweight · BFC
- Jon Hess1-1-0 · Super Heavyweight · IS
- Jon Jones28-1-0 · Heavyweight · UFC
- Jon Koppenhaver14-5-0 · Welterweight · BFC
- Jon Kunneman10-1-0 · Middleweight · APFC
- Jon Madsen8-2-0 · Heavyweight · TFC
- Jon Manley13-6-0 · Welterweight · BFC
- Jon Tuck11-5-0 · Lightweight · BFC
- Jon delos Reyes8-5-0 · Flyweight · UFC
- Jonas Bilharinho11-3-1 · Featherweight · BFC
- Jonas Mågård19-7-0 · Bantamweight · OKMMA
- Jonatas Novaes13-5-0 · Lightweight · LFN
- Jonathan Brookins16-10-0 · Featherweight · BAMMA
- Jonathan Garcia5-2-0 · Featherweight · WOW
- Jonathan Goulet23-12-0 · Welterweight · RS
- Jonathan Hanes6-4-0 · Welterweight · LFA
- Jonathan Martin9-3-0 · Lightweight · PFL
- Jonathan Martinez19-6-0 · Bantamweight · UFC
- Jonathan Meunier9-2-0 · Welterweight · AFC
- Jonathan Micallef10-1-0 · Welterweight · UFC
- Jonathan Mix6-4-0 · Welterweight · CFC
- Jonathan Pearce14-7-0 · Featherweight · UFC
- Jonathan Piersma12-4-0 · Middleweight · PFL
- Jonathan Rivera8-3-0 · Welterweight · KOTC
- Jonathan Wiezorek11-2-0 · Heavyweight · EXC
- Jonathan Wilson9-5-0 · Heavyweight · TUFF
- Jonavin Webb12-4-0 · Welterweight · RCC
- Jong Wang Kim13-23-0 · Heavyweight · DEEP
- Jong Won Kim0-1-0 · Featherweight · DREAM
- Jonny Carson11-7-0 · Lightweight · LFC
- Jonny Goh3-4-0 · Lightweight · GC
- Jonny Parsons9-3-0 · Welterweight · UFC
- Joo Sang Yoo9-1-0 · Featherweight · UFC
- Jora Ayvazyan18-1-0 · Lightweight · ACA
- Jordan Dowdy9-5-0 · Middleweight · NFA
- Jordan Espinosa15-10-0 · Flyweight · CG
- Jordan Fongno5-1-0 · Middleweight · PFL
- Jordan Goodwin0-0-0 · SF
- Jordan Griffin19-11-0 · Featherweight · OFP
- Jordan Johnson12-2-1 · Light Heavyweight · PFL
- Jordan Leavitt13-4-0 · Lightweight · UFC
- Jordan Mein32-14-0 · Welterweight · BTC
- Jordan Molinari4-2-0 · Flyweight · CWFC
- Jordan Newman6-0-0 · Middleweight · Bellator MMA
- Jordan Oliver1-0-0 · Featherweight · BFC
- Jordan Radev23-5-0 · Welterweight · BAMMA
- Jordan Rinaldi14-7-0 · Featherweight · UFC
- Jordan Vucenic16-4-0 · Featherweight · CWFC
- Jordan Williams9-6-0 · Welterweight · UFC
- Jordan Wright13-5-0 · Light Heavyweight · FFC
- Jordan Zébo9-1-0 · Middleweight · AFC
- Jorge Calvo20-8-0 · Flyweight · WOW
- Jorge Chacon0-1-0 · Middleweight · Inka MMA
- Jorge Gonzalez17-6-0 · Light Heavyweight · ACA
- Jorge Gurgel14-10-0 · Lightweight · TFC
- Jorge Lopez12-5-0 · Welterweight · WSOF
- Jorge Masvidal35-17-0 · Welterweight · UFC
- Jorge Oliveira5-3-1 · Light Heavyweight · SC
- Jorge Patino39-19-2 · Lightweight · TF
- Jorge Rivera20-9-0 · Middleweight · UFC
- Jorge Santiago25-12-0 · Welterweight · WSOF
- Jorge de Oliveira1-1-0 · Lightweight · SCF
- Jorgen Kruth5-0-0 · Light Heavyweight · Pancrase Gym Sweden
- Jose Alberto Quiñonez12-7-0 · Featherweight · LFL
- Jose Alday13-7-1 · Bantamweight · FAC
- Jose Augusto9-4-0 · Heavyweight · LFA
- Jose Delgado12-2-0 · Featherweight · UFC
- Jose Henrique Souza9-1-0 · Welterweight · UFC
- Jose Johnson16-10-0 · Flyweight · UFC
- Jose Landi-Jons29-16-0 · Welterweight · TFC
- Jose Maria41-10-0 · Bantamweight · TMB
- Jose Maria Tome41-10-0 · Bantamweight · F2O
- Jose Mendez9-2-0 · Lightweight · LFA
- Jose Ochoa9-2-0 · Flyweight · UFC
- Jose Palacios3-2-0 · SF
- Jose Perez8-1-0 · Featherweight · PFL
- Jose Santibanez10-3-0 · Lightweight ·
- Jose Torres13-5-1 · Bantamweight · BCF
- Josefine Knutsson8-1-0 · Strawweight · UFC
- Joselyne Edwards18-6-0 · Bantamweight · UFC
- Joseph Benavidez28-8-0 · Flyweight · UFC
- Joseph Donkor6-3-0 · Lightweight · OKMMA
- Joseph Holmes8-4-0 · Light Heavyweight · UFC
- Joseph Kropschot9-3-0 · Middleweight · UFC
- Joseph Larcinese6-0-0 · Flyweight · RUFC
- Joseph Luciano10-5-0 · Middleweight · JCK
- Joseph Morales14-2-0 · Flyweight · UFC
- Joseph Sandoval7-7-0 · Bantamweight · XKO
- Josh Appelt15-7-0 · Heavyweight · DWCS
- Josh Barnett35-8-0 · Heavyweight · UFC
- Josh Bennett11-14-0 · Heavyweight · BU
- Josh Bryant15-4-0 · Middleweight · TFC
- Josh Bumgarner6-4-0 · Middleweight · IC
- Josh Carrick3-0-0 · Heavyweight · CWFC
- Josh Clopton6-2-1 · Featherweight · UFC
- Josh Copeland18-7-1 · Heavyweight · RCC
- Josh Culibao11-4-1 · Featherweight · UFC
- Josh Diekmann15-8-0 · Heavyweight · BFC
- Josh Emmett19-7-0 · Featherweight · UFC
- Josh Epps6-7-0 · Flyweight · FHMMA
- Josh Ferguson11-5-0 · Flyweight · HRMMA
- Josh Fremd13-6-0 · Middleweight · PFL
- Josh Grispi14-5-0 · Featherweight · UFC
- Josh Haynes14-11-0 · Light Heavyweight · ROF
- Josh Hendricks19-11-0 · Heavyweight · CES
- Josh Hokit10-0-0 · Heavyweight · UFC
- Josh Koscheck17-11-0 · Welterweight · BFC
- Josh LaBerge11-7-0 · Lightweight · CES
- Josh McDonald9-5-0 · Welterweight · DH
- Josh Neal6-5-0 · Welterweight · CAMMA
- Josh Neer36-16-1 · Welterweight · VFC
- Josh Parisian15-8-0 · Heavyweight · UFC
- Josh Pulsifer17-8-0 · Featherweight · BFC
- Josh Quinlan6-4-0 · Welterweight · UFC
- Josh Rafferty9-8-0 · Welterweight · BFC
- Josh Samman12-4-0 · Middleweight · UFC
- Josh Sampo11-6-0 · Flyweight · BFC
- Josh Schockman6-3-0 · Light Heavyweight · SF
- Josh Shockley11-4-0 · Lightweight · UFC
- Josh Silveira15-6-0 · Light Heavyweight · PFL
- Josh Smith10-8-0 · Flyweight · BTC
- Josh Stansbury8-5-0 · Light Heavyweight · SC
- Josh Stuart0-2-0 · Welterweight ·
- Josh Thomson22-9-0 · Lightweight · BFC
- Josh Thornburg8-8-0 · Welterweight · AOW
- Josh Wick12-6-0 · Featherweight · DWCS
- Joshua Burkman28-18-0 · Lightweight · LFA
- Joshua Onwordi7-7-0 · Welterweight · CWFC
- Joshua Stansbury8-5-0 · Light Heavyweight · SC
- Joshua Van17-2-0 · Flyweight · UFC
- Joshua Weems17-9-0 · Lightweight · PFL
- Josiah Harrell11-1-0 · Welterweight · UFC
- Josiane Nunes10-4-0 · Bantamweight · UFC
- Josias Musasa8-2-0 · Bantamweight · UFC
- Josiel Silva24-7-0 · Bantamweight · ACA
- Josua Hernández2-3-0 · Flyweight · CWFC
- José Aldo32-10-0 · Bantamweight · UFC
- José Delano17-3-0 · Featherweight · UFC
- José Medina11-7-0 · Middleweight · UFC
- José Montanha6-1-0 · Heavyweight · UFC
- Journey Newson10-5-0 · Bantamweight · UFC
- Jovan Leka14-2-0 · Heavyweight · UFC
- Jozef Wittner16-7-0 · Welterweight · OKMMA
- Juan Adams10-6-0 · Heavyweight · PCS
- Juan Alcain1-2-0 · CCFC
- Juan Carlos Izquierdo7-3-0 · Featherweight · WOW
- Juan Díaz16-1-1 · Bantamweight · UFC
- Juan Espino10-2-0 · Heavyweight ·
- Juan Manuel Puig11-4-0 · Featherweight · UFC
- Juan Miranda7-5-0 · Lightweight ·
- Juan Mott3-3-0 · Light Heavyweight ·
- Juan Pablo Vieira10-0-0 · Lightweight · LFA
- Juan Puerta24-8-0 · Flyweight · TFC
- Juan Puig11-4-0 · Featherweight · UFC
- Juancamilo Ronderos4-2-0 · Flyweight · UFC
- Jules Bruchez1-2-0 · Middleweight · BFC
- Julia Avila9-4-0 · Bantamweight · UFC
- Julia Budd17-6-0 · Featherweight · PFL
- Julia Polastri14-6-0 · Strawweight · UFC
- Julian Erosa31-13-0 · Featherweight · UFC
- Julian Marquez9-6-0 · Middleweight · UFC
- Julian Sanchez0-1-0 · Super Heavyweight · UFC
- Juliana Lima10-7-0 · Strawweight · IFC
- Juliana Miller5-4-0 · Flyweight · UFC
- Julianna Peña12-6-0 · Women's Bantamweight · UFC
- Julie Kedzie16-13-0 · Bantamweight · UFC
- Julien Leblanc10-3-0 · Middleweight · UFC
- Juliet Ukah9-1-0 · Strawweight · PFL
- Julija Stoliarenko11-9-2 · Flyweight · UFC
- Julio Arce22-7-0 · Lightweight · PFL
- Julio Paulino23-5-0 · Heavyweight · AFC
- Julius Anglickas10-4-0 · Light Heavyweight · BFC
- Julius Walker7-3-0 · Light Heavyweight · UFC
- Jumabieke Tuerxun23-11-1 · Bantamweight · OLMMA
- Jun Yong Park19-7-0 · Middleweight · UFC
- Junie Allen Browning5-6-0 · Welterweight · HRMMA
- Junie Browning5-6-0 · Welterweight · HRMMA
- Junior Albini17-6-0 · Heavyweight · AFT
- Junior Assuncao16-8-0 · Lightweight · 864
- Junior Hernandez3-1-0 · Welterweight · KOF
- Junior Tafa7-6-0 · Heavyweight · UFC
- Junior dos Santos23-11-0 · Heavyweight · MVP
- Junye Gao20-13-0 · Bantamweight · JCK
- Jussier Formiga24-8-0 · Flyweight · LFA
- Justin Buchholz16-11-0 · Welterweight · AFC
- Justin Burlinson8-2-0 · Welterweight · CWFC
- Justin Davis0-1-0 · Lightweight · DH
- Justin DeMoney15-11-1 · Welterweight · MFC
- Justin Edwards10-7-0 · Lightweight · WXC
- Justin Eilers19-7-1 · Heavyweight · EXC
- Justin Frazier11-3-0 · Super Heavyweight · PFMMA
- Justin Gaethje28-5-0 · Lightweight · UFC
- Justin Gonzales14-5-0 · Featherweight · PFL
- Justin Guthrie18-9-0 · Welterweight · VFC
- Justin Haskins7-6-0 · Welterweight · AMMAFL
- Justin Hawes7-8-1 · Light Heavyweight · CS
- Justin James13-7-0 · Lightweight · KOTC
- Justin Jaynes17-11-0 · Welterweight · FFL
- Justin Lawrence11-5-0 · Featherweight · BFC
- Justin Ledet9-4-0 · Light Heavyweight · UFC
- Justin Levens9-8-0 · Middleweight · PFC
- Justin Martin4-3-0 · Light Heavyweight ·
- Justin McCully11-5-2 · Heavyweight · RFA
- Justin McElfresh6-4-0 · Light Heavyweight · XFO
- Justin Pennington3-3-0 · Bantamweight · 3FC
- Justin Robbins14-19-1 · Featherweight · BFC
- Justin Salas12-7-0 · Lightweight · UFC
- Justin Scoggins15-7-0 · Flyweight · IF
- Justin Sumter9-5-0 · Middleweight · CES
- Justin Tafa7-5-0 · Heavyweight · UFC
- Justin Wetzell12-4-0 · Bantamweight · PFL
- Justin Wilcox14-7-0 · Lightweight · BFC
- Justin Willis8-2-0 · Heavyweight · UFC
- Justin Wren13-2-0 · Heavyweight · BFC
- Justine Kish9-6-0 · Flyweight · BFC
- Jutaro Nakao26-21-4 · Welterweight · Pancrase
- Jéssica Andrade26-15-0 · Flyweight · UFC
- Júlia Barros3-0-0 · Strawweight · LFA