Tous les combattants
 | Rousimar Palhares | 8-4-0 UFC | #1116 |  |
 | Roxanne Modafferi | 4-8-0 UFC | #2020 |  |
 | Roy Nelson | 9-10-0 UFC | #795 | |
 | Roybert Echeverria | 0-1-0 REC | #6804 |  |
 | Royce Alger | 0-2-0 UFC | #4871 | |
 | Royce Gracie | 11-1-1 UFC | #424 | |
 | Royston Wee | 2-1-0 UFC | #3847 |  |
 | Roza Gumienna | 1-3-0 REC | #4497 |  |
 | Ruan Miqueias | #7782 | | |
 | Ruan Potts | 0-3-0 UFC | #4284 |  |
 | Ruben Wolf | 0-2-0 REC | #5002 |  |
 | Ruby Mesu | 0-1-0 REC | #6002 |  |
 | Rudson Caliocane | 0-1-0 REC | #5892 | |
 | Rudy Delangue | #7988 |  | |
 | Rudyard Moncayo | 0-1-0 UFC | #6799 | |
 | Ruel Panales | 0-2-0 REC | #4443 |  |
 | Rui Imura | 0-1-0 REC | #5015 |  |
 | Rui Kato | 0-1-0 REC | #6714 | |
 | Ruslan Abiltarov | 0-1-0 REC | #6441 |  |
 | Ruslan Gabaraev | 1-3-0 REC | #1875 | |
 | Ruslan Kolodko | 0-2-0 REC | #3621 |  |
 | Ruslan Magomedov | 3-0-0 UFC | #3072 | |
 | Ruslan Medzhidov | 0-2-0 REC | #4209 |  |
 | Ruslan Shamilov | 4-0-0 REC | #309 | |
 | Russell Doane | 3-5-0 UFC | #2989 | |