Sorted alphabetically by last name · 2711 fighters
| Name | Nickname | |
|---|---|---|
| RS | Renato Sobral | "Babalu" |
| RV | Renato Verissimo | "Charuto" |
| RF | Renee Forte | |
| RG | Renzo Gracie | |
| RD | Reuben Duran | |
| RH | Rex Holman | "Big Dog" |
| RM | Reza Madadi | "Mad Dog" |
| RN | Reza Nasri | |
| RM | Rhys McKee | "Skeletor" |
| RA | Ricardo Abreu | "Demente" |