Poids Moyens Hommes
 | Rashid Khazbulatov | 2-0-0 REC | #855 |  |
 | Ray Cooper III | 12-6-1 REC | #676 |  |
 | Reinier de Ridder | 4-2-0 UFC | #128 |  |
 | Renato Valente | 1-1-0 REC | #5717 |  |
 | Rene Pessoa | 1-1-0 REC | #1903 | |
 | Rex Harris | 1-3-0 REC | #4784 | |
 | Ricardo Abreu | 1-1-0 UFC | #4570 | |
 | Rich Franklin | 14-6-0 UFC | #223 | |
 | Riki Fukuda | 2-3-0 UFC | #3275 |  |
 | Rob Earls | 0-1-0 REC | #5389 |  |
 | Rob Yundt | 0-2-0 UFC | #4609 | |
 | Robert Bryczek | 1-1-0 UFC | #1071 |  |
 | Robert Hale | 0-1-0 REC | #7099 | |
 | Robert Pukac | 5-8-0 REC | #1221 |  |
 | Robert Valentin | 0-3-0 UFC | #1490 |  |
 | Robert Valiev | 0-2-0 REC | #5021 | |
 | Robert Whittaker | 17-7-0 UFC | #59 |  |
 | Robin Roos | 0-2-0 REC | #4509 |  |
 | Rodolfo Vieira | 6-4-0 UFC | #724 | |
 | Rodrigo Ruas | 0-1-0 UFC | #5894 | |