Poids Légers Hommes
 | Risto Dimitrov | 0-1-0 REC | #7723 |  |
 | Rizwan Ali | 1-0-0 REC | #2423 |  |
 | Robert Varricchio | 0-1-0 REC | #5812 |  |
 | Robert Watley | 2-4-0 REC | #1913 | |
 | Roberto de Souza | 4-3-0 REC | #1671 |  |
 | Robin Frank | 0-1-0 REC | #5280 |  |
 | Robson Junior | 1-0-0 REC | #6283 | |
 | Rodrigo de Lima | 0-2-0 UFC | #4685 | |
 | Rodrigo Lidio | 0-2-0 REC | #5941 | |
 | Rodrigo Paiva | 0-1-0 REC | #6159 | |
 | Rodrigo Vargas | 1-3-0 UFC | #3056 |  |
 | Roger Bowling | 0-2-0, 1NC UFC | #5641 | |
 | Roland Pruden | 1-1-0 REC | #3329 | |
 | Roland Szolnoki | 1-0-0 REC | #7918 |  |
 | Rolando Bedoya | 0-4-0 UFC | #3161 |  |
 | Roman David | 1-0-0 REC | #2941 |  |
 | Roman Mitichyan | 1-1-0 UFC | #4364 |  |
 | Roman Szymanski | 2-4-0 REC | #2315 |  |
 | Roman Zhukov | 0-1-0 REC | #7186 |  |
 | Rongzhu | 4-3-0 UFC | #453 |  |