Sorted alphabetically by last name · 2778 fighters
| Name | Nickname | |
|---|---|---|
| SM | Sean McCorkle | |
| SO | Sean O'Connell | "The Real OC" |
| SO | Sean O'Malley | "Suga" |
| SP | Sean Pierson | "The Punisher" |
| SS | Sean Salmon | |
| SS | Sean Sharaf | "The Smoke" |
| SS | Sean Sherk | "The Muscle Shark" |
| SS |
| SS | Sean Spencer | "Black Magic" |
| SS | Sean Strickland |