Poids Moyens Hommes
 | Rodrigo Ruas | 0-1-0 UFC | #5894 |  |
 | Roger Gracie | 0-1-0 UFC | #4056 | |
 | Roger Narvaez | 1-2-0 UFC | #3551 |  |
 | Roman Dolidze | 9-4-0 UFC | #237 |  |
 | Roman Kopylov | 6-5-0 UFC | #555 |  |
 | Romero Cotton | 1-2-0 REC | #4806 | |
 | Ron Stallings | 1-2-0 UFC | #3533 | |
 | Ronaldo Souza | 9-7-0 UFC | #872 | |
 | Rory Markham | 1-2-0 UFC | #3572 | |
 | Rory Singer | 2-2-0 UFC | #3660 | |
 | Royce Alger | 0-2-0 UFC | #4406 | |
 | Rudyard Moncayo | 0-1-0 UFC | #6116 | |
 | Ruslan Shamilov | 3-0-0 REC | #340 | |
 | Ryan Gandra | 1-0-0 UFC | #225 | |
 | Ryan Janes | 2-2-0 UFC | #3438 |  |
 | Ryan Jensen | 2-6-0 UFC | #2782 | |
 | Ryan Loder | 1-2-0 UFC | #2070 | |
 | Sabah Homasi | 0-3-0 UFC | #3402 | |
 | Samir Kadi | 0-1-0 REC | #5064 |  |
 | Samir Zaidi | 0-1-0 REC | #6483 | |