Poids Plumes Hommes
 | Rob Whiteford | 2-3-0 UFC | #2917 |  |
 | Robbie Peralta | 4-3-0, 1NC UFC | #2922 |  |
 | Robbie Ring | 0-1-0 REC | #6454 | |
 | Robert Ruchala | 0-2-0 UFC | #1422 |  |
 | Roberto Hernandez | 4-2-0 REC | #3354 | |
 | Roberto Romero | 0-2-0 UFC | #2928 |  |
 | Rocky Lee | 0-1-0 UFC | #4107 |  |
 | Rodion Mubarakshin | 0-2-0 REC | #4801 |  |
 | Rodolfo Rubio | 0-1-0 UFC | #6185 | |
 | Rodrigo Brauna | 2-0-0 REC | #866 | |
 | Rodrigo Damm | 3-4-0 UFC | #3244 |  |
 | Rodrigo Praia | 1-1-0 REC | #5168 | |
 | Rodrigo Vera | 1-0-0 UFC | #584 |  |
 | Roedie Roets | #7709 |  | |
 | Rogelio Luna | 1-1-0 REC | #6691 | |
 | Roger Severson | 0-2-0 REC | #4652 | |
 | Rolando Dy | 1-3-0 UFC | #3835 |  |
 | Roli Delgado | 1-2-0 UFC | #4635 | |
 | Roman Bogatov | 0-1-0 UFC | #7305 | |
 | Roman Kurashvili | 1-0-0 REC | #1887 |  |