Poids Légers Hommes
 | Rayhan Hilmi-Dias | 0-1-0 REC | #7534 |  |
 | Reed Bleymeyer | 0-1-0 REC | #5892 |  |
 | Renato Moicano | 13-7-0 UFC | #54 |  |
 | Renee Forte | 1-3-0 UFC | #4124 | |
 | Renzo Cortti | 0-1-0 REC | #7223 |  |
 | Reza Madadi | 3-4-0 UFC | #2784 |  |
 | Ricardo Seixas | 0-1-0 REC | #6456 | |
 | Rich Clementi | 5-5-0 UFC | #2263 | |
 | Rich Crunkilton | 0-1-0 UFC | #6700 | |
 | Richard Daffron | 0-1-0 REC | #6712 | |
| Richard Silva | 1-0-0 REC | #883 | |
 | Richie Hightower | 0-1-0 UFC | #5289 | |
 | Richie Lewis | 1-1-0 REC | #4071 | |
 | Richie Miranda | 6-0-0 REC | #1125 | |
 | Rick Davis | 0-1-0 UFC | #6774 | |
 | Ricky Glenn | 4-6-1 UFC | #2039 | |
 | Ricky Palacios | 1-0-0 REC | #6815 | |
 | Risto Dimitrov | 0-1-0 REC | #7224 |  |
 | Rizwan Ali | 1-0-0 REC | #1773 |  |
 | Robert Varricchio | #7783 | |