Sorted alphabetically by last name · 2775 fighters
| Name | Nickname | |
|---|---|---|
| SF | Spencer Fisher | "The King" |
| SC | Spike Carlyle | "Alpha Ginger" |
| SD | Stan Dorsainvil | "The Drill" |
| SN | Stanislav Nedkov | "Stucky" |
| SS | Stefan Sekulic | |
| SS | Stefan Struve | "Skyscraper" |
| SB | Stephan Bonnar | "The American Psycho" |
| SE |
| Stephanie Egger |
| SL | Stephanie Luciano | "Rondinha" |
| SB | Stephen Bass | "Bigfish" |