Sorted alphabetically by last name · 2711 fighters
| Name | Nickname | |
|---|---|---|
| RP | Ramona Pascual | |
| RN | Ramsey Nijem | |
| RM | Randa Markos | "Quiet Storm" |
| RB | Randy Brown | "Rudeboy" |
| RC | Randy Costa | "The Zohan" |
| RC | Randy Couture | "The Natural" |
| RY | Rani Yahya | |
| RB | Raoni Barcelos | |
| RA | Raphael Assuncao | |
| RP | Raphael Pessoa | "Bebezao" |