Tous les combattants
 | John Winter | 0-1-0 REC | #7298 |  |
 | John Yannis | 1-2-0 UFC | #777 |  |
 | John-Olav Einemo | 0-2-0 UFC | #3919 |  |
 | Johnathan Waid | 1-1-0 REC | #1570 | |
 | Johnny Bedford | 2-3-0, 1NC UFC | #3324 | |
 | Johnny Campbell | 0-1-0 REC | #6805 | |
 | Johnny Case | 4-2-0 UFC | #2380 | |
 | Johnny Eblen | 7-1-0 REC | #574 | |
 | Johnny Eduardo | 3-5-0 UFC | #2961 |  |
 | Johnny Gill | 1-1-0 REC | #6225 | |
 | Johnny Hopper | 0-1-0 REC | #6524 | |
 | Johnny Munoz Jr | 2-4-0 UFC | #3219 | |
 | Johnny Rees | 0-2-0 UFC | #5691 | |
 | Johnny Rhodes | 2-1-0 UFC | #3961 | |
 | Johnny Robles | 1-0-0 REC | #3520 | |
 | Johnny Soto | 0-1-0 REC | #7583 | |
 | Johnny Walker | 8-7-0, 1NC UFC | #284 | |
 | Johny Hendricks | 13-8-0 UFC | #297 | |
 | Joice Mara | #7285 | | |
 | Joilton Lutterbach | 0-3-0 REC | #3954 | |
 | Joji Goto | 3-1-0 REC | #1361 |  |
 | Jon Cunningham | 0-1-0 REC | #7263 | |
 | Jon delos Reyes | 1-3-0 UFC | #3788 |  |
 | Jon Fitch | 14-3-1 UFC | #246 | |
 | Jon Gover | 0-1-0 REC | #7613 | |