Poids Légers Hommes
 | Rayhan Hilmi-Dias | 0-1-0 REC | #7717 |  |
 | Reed Bleymeyer | 0-1-0 REC | #6101 |  |
 | Renato Moicano | 13-7-0 UFC | #93 |  |
 | Renee Forte | 1-3-0 UFC | #4284 | |
 | Renzo Cortti | 0-1-0 REC | #7412 |  |
 | Reza Madadi | 3-4-0 UFC | #2941 |  |
 | Ricardo Seixas | 0-1-0 REC | #6548 | |
 | Rich Clementi | 5-5-0 UFC | #2362 | |
 | Rich Crunkilton | 0-1-0 UFC | #6995 | |
 | Richard Daffron | 0-1-0 REC | #6740 | |
| Richard Silva | 1-0-0 REC | #1343 | |
 | Richie Hightower | 0-1-0 UFC | #5665 | |
 | Richie Lewis | 1-1-0 REC | #4356 | |
 | Richie Miranda | 7-0-0 REC | #345 | |
 | Rick Davis | 0-1-0 UFC | #7052 | |
 | Ricky Glenn | 4-6-1 UFC | #2057 | |
 | Ricky Palacios | 1-0-0 REC | #7193 | |
 | Risto Dimitrov | 0-1-0 REC | #7520 |  |
 | Rizwan Ali | 1-0-0 REC | #2119 |  |
 | Robert Varricchio | 0-1-0 REC | #6123 | |