Sorted alphabetically by last name · 2780 fighters
| Name | Nickname | |
|---|---|---|
| BI | Blagoy Ivanov | "Baga" |
| BB | Blake Bilder | "El Animal" |
| BD | Blood Diamond | |
| BN | Bo Nickal | |
| BC | Bob Cook | "Crazy" |
| BG | Bob Gilstrap | |
| BH | Bobby Hoffman | "The Truth" |
| BM | Bobby Moffett |
| "The Wolfman" |
| BN | Bobby Nash |
| BS | Bobby Southworth |