Poids Mi-Moyens Hommes
 | Roman Faraldo | 2-2-0 REC | #3597 |  |
 | Romie Aram | 0-1-0 UFC | #5591 |  |
 | Ron Humphrey | 1-0-0 REC | #1554 | |
 | Ronald Jhun | 0-1-0 UFC | #6632 | |
 | Ronald Paradeiser | 11-4-0 REC | #277 |  |
 | Ronaldo Silva | 0-1-0 REC | #7399 |  |
 | Rory MacDonald | 9-4-0 UFC | #504 |  |
 | Ross Houston | #7024 |  | |
 | Ross Pointon | 0-2-0 UFC | #4285 |  |
 | Rostem Akman | 0-2-0 UFC | #3271 |  |
 | Rousimar Palhares | 8-4-0 UFC | #998 | |
 | Ruslan Kolodko | 0-2-0 REC | #3598 |  |
 | Rustam Khadisgadzhiev | 2-0-0 REC | #1443 |  |
 | Ryan Charlebois | 0-1-0 REC | #6361 | |
 | Ryan Laflare | 7-3-0 UFC | #1568 | |
 | Ryan Madigan | 0-1-0 UFC | #5173 | |
 | Ryan McGillivray | 0-1-0 UFC | #5292 | |
 | Ryan Thomas | 0-2-0 UFC | #4579 | |
 | Ryo Chonan | 1-3-0 UFC | #3515 |  |
 | Sado Ucar | 0-1-0 REC | #4138 |  |