Poids Mi-Moyens Hommes
 | Rick Story | 12-7-0 UFC | #473 |  |
 | Ricky Rainey | 0-2-0 UFC | #5693 | |
 | Rico Farrington | 0-1-0 REC | #6218 |  |
 | Rinat Fakhretdinov | 6-0-1 UFC | #943 |  |
 | Rivaldo Pereira | 1-0-0 REC | #1627 |  |
 | Roan Carneiro | 4-5-0 UFC | #2729 |  |
 | Roan Crocker | 1-0-0 REC | #1814 |  |
 | Rob Kimmons | 3-4-0 UFC | #3116 | |
 | Robbie Lawler | 15-10-0 UFC | #161 | |
 | Robert Constantin | 0-1-0 REC | #5309 |  |
 | Robert Maciejowski | 0-1-0 REC | #7484 |  |
 | Rodrigo Sezinando | 0-1-0 UFC | #3333 | |
 | Roger Huerta | 6-2-0 UFC | #1944 | |
 | Roger Zapata | 0-1-0 UFC | #6789 | |
 | Romain Debienne | 3-5-0 REC | #856 |  |
 | Roman Faraldo | 2-2-0 REC | #4171 | |
 | Romie Aram | 0-1-0 UFC | #6040 |  |
 | Ron Humphrey | 1-0-0 REC | #2470 | |
 | Ronald Jhun | 0-1-0 UFC | #7264 | |
 | Ronald Paradeiser | 11-5-0 REC | #537 |  |