Sorted alphabetically by last name · 2707 fighters
| Name | Nickname | |
|---|---|---|
| SP | Sherman Pendergarst | "The Tank" |
| SM | Sheymon Moraes | |
| SM | Shi Ming | |
| SA | Shinsho Anzai | "Animal" |
| SC | Shonie Carter | "Mr. International" |
| SS | Shunichi Shimizu | |
| SE | Sijara Eubanks | "SarJ" |
| SG | Silvana Gomez Juarez | "La Malvada" |
| ST | Simeon Thoresen | "The Grin" |
| SL | Sione Latu |