Tous les combattants
 | Ross Pointon | 0-2-0 UFC | #4703 |  |
 | Rostem Akman | 0-2-0 UFC | #3631 |  |
 | Rostislav Yakushev | #8086 |  | |
 | Rousimar Palhares | 8-4-0 UFC | #1138 |  |
 | Roxanne Modafferi | 4-8-0 UFC | #2032 |  |
 | Roy Nelson | 9-10-0 UFC | #810 | |
 | Roybert Echeverria | 0-1-0 REC | #6703 |  |
 | Royce Alger | 0-2-0 UFC | #4838 | |
 | Royce Gracie | 11-1-1 UFC | #437 | |
 | Royston Wee | 2-1-0 UFC | #3816 |  |
 | Roza Gumienna | 1-3-0 REC | #4426 |  |
 | Ruan Miqueias | #7721 | | |
 | Ruan Potts | 0-3-0 UFC | #4280 |  |
 | Ruben Wolf | 0-2-0 REC | #4939 |  |
 | Ruby Mesu | 0-1-0 REC | #5814 |  |
 | Rudson Caliocane | 0-1-0 REC | #5877 | |
 | Rudy Delangue | #7943 |  | |
 | Rudyard Moncayo | 0-1-0 UFC | #6827 | |
 | Ruel Panales | 0-2-0 REC | #4381 |  |
 | Rui Imura | 0-1-0 REC | #4948 |  |
 | Rui Kato | 0-1-0 REC | #6653 | |
 | Ruslan Abiltarov | 0-1-0 REC | #6387 |  |
 | Ruslan Gabaraev | 1-3-0 REC | #1812 | |
 | Ruslan Kolodko | 0-2-0 REC | #3566 | |
 | Ruslan Magomedov | 3-0-0 UFC | #3082 | |