Poids Lourds Hommes
 | Robelis Despaigne | 1-2-0 UFC | #569 |  |
 | Robert Lucarelli | 0-1-0 UFC | #5564 |  |
 | Roberto Traven | 1-1-0 UFC | #4630 |  |
 | Robin Fosum | 2-0-1 REC | #5375 |  |
 | Rodrigo Nascimento | 4-3-0, 1NC UFC | #1306 | |
 | Roger Hollett | 0-2-0 UFC | #4882 |  |
 | Rolles Gracie | 0-1-0 UFC | #6270 | |
 | Ron Faircloth | #7414 | | |
 | Ron Waterman | 2-1-1 UFC | #3609 | |
 | Rony Bouzy | 1-2-0 REC | #2213 |  |
 | Roque Martinez | 0-3-0 UFC | #4500 |  |
 | Roy Nelson | 9-10-0 UFC | #795 | |
 | Ruan Potts | 0-3-0 UFC | #4284 |  |
 | Ruben Wolf | 0-2-0 REC | #5002 |  |
 | Ruslan Magomedov | 3-0-0 UFC | #3072 |  |
 | Ruslan Medzhidov | 0-2-0 REC | #4209 |  |
 | Ryan Bader | 15-5-0 UFC | #183 | |
 | Ryan Firinaiu | 1-0-0 REC | #1605 | |
 | Ryan Parker | 0-1-0 UFC | #6731 | |
 | Ryan Spann | 10-6-0 UFC | #242 | |