Poids Mi-Moyens Hommes
 | Rhys McKee | 1-5-0 UFC | #1231 |  |
 | Ricardo Almeida | 6-5-0 UFC | #1900 |  |
 | Ricardo Funch | 0-4-0 UFC | #3711 | |
 | Rich Attonito | 3-2-0 UFC | #2971 | |
 | Richard Martins | 4-0-0 REC | #956 |  |
 | Richard Walsh | 2-3-0, 1NC UFC | #3034 |  |
 | Rick Story | 12-7-0 UFC | #413 | |
 | Ricky Rainey | 0-2-0 UFC | #5624 | |
 | Rico Farrington | 0-1-0 REC | #5804 |  |
 | Rinat Fakhretdinov | 6-0-1 UFC | #589 |  |
 | Roan Carneiro | 4-5-0 UFC | #2450 | |
 | Roan Crocker | 1-0-0 REC | #572 |  |
 | Rob Kimmons | 3-4-0 UFC | #2753 | |
 | Robbie Lawler | 15-10-0 UFC | #140 | |
 | Robert Constantin | 0-1-0 REC | #5121 |  |
 | Robert Maciejowski | 0-1-0 REC | #6811 |  |
 | Rodrigo Sezinando | 0-1-0 UFC | #2878 | |
 | Roger Huerta | 6-2-0 UFC | #1781 | |
 | Roger Zapata | 0-1-0 UFC | #6133 | |
 | Romain Debienne | 2-4-0 REC | #2012 |  |