Poids Lourds Hommes
 | Robelis Despaigne | 1-2-0 UFC | #691 |  |
 | Robert Lucarelli | 0-1-0 UFC | #5659 |  |
 | Roberto Traven | 1-1-0 UFC | #4660 |  |
 | Robin Fosum | 2-0-1 REC | #5364 |  |
 | Rodrigo Nascimento | 4-3-0, 1NC UFC | #1345 | |
 | Roger Hollett | 0-2-0 UFC | #4935 |  |
 | Rolles Gracie | 0-1-0 UFC | #6266 | |
 | Ron Faircloth | #7483 | | |
 | Ron Waterman | 2-1-1 UFC | #3652 | |
 | Rony Bouzy | 1-2-0 REC | #2330 |  |
 | Roque Martinez | 0-3-0 UFC | #4519 |  |
 | Roy Nelson | 9-10-0 UFC | #784 | |
 | Ruan Potts | 0-3-0 UFC | #4285 |  |
 | Ruben Wolf | 0-2-0 REC | #5148 |  |
 | Ruslan Magomedov | 3-0-0 UFC | #3087 |  |
 | Ruslan Medzhidov | 0-2-0 REC | #4310 |  |
 | Ryan Bader | 15-5-0 UFC | #185 | |
 | Ryan Firinaiu | 1-0-0 REC | #1774 | |
 | Ryan Parker | 0-1-0 UFC | #6804 | |
 | Ryan Spann | 10-6-0 UFC | #255 | |