Sorted alphabetically by last name · 2775 fighters
| Name | Nickname | |
|---|---|---|
| RB | Raoni Barcelos | |
| RA | Raphael Assuncao | |
| RP | Raphael Pessoa | "Bebezao" |
| RP | Raquel Pennington | "Rocky" |
| RC | Rashad Coulter | "Daywalker" |
| RE | Rashad Evans | "Suga" |
| RM | Rashid Magomedov | "Highlander" |
| RR |
| Raul Rosas Jr. |
| "El Nino Problema" |
| RP | Raulian Paiva |
| RO | Ravena Oliveira | "Kenoudy" |