Tous les combattants
 | Brian Torres | 1-0-0 REC | #6414 |  |
 | Brianna Fortino | 1-1-0 UFC | #4587 | |
 | Brice Belghazi | 0-2-0 REC | #3117 |  |
 | Brice Picaud | 0-1-0 REC | #5207 | |
 | Brigid Chase | 0-1-0 REC | #6064 | |
 | Bristol Marunde | 0-2-0 UFC | #4106 | |
 | British Boloyoang | 0-1-0 REC | #5187 |  |
 | Brittany Camozzi | 0-2-0 REC | #6804 | |
 | Brittney Cloudy | 0-4-0 REC | #3669 | |
 | Brittney Elkin | 0-2-0 REC | #4595 | |
 | Briven Sullivan | 1-0-0 REC | #1325 | |
 | Brock Jardine | 0-2-0 UFC | #6031 | |
 | Brock Larson | 3-3-0 UFC | #3099 | |
 | Brock Lesnar | 4-3-0, 1NC UFC | #475 | |
 | Brodie Farber | 0-2-0 UFC | #5221 | |
 | Brogan Walker | 0-3-0 UFC | #2874 | |
 | Brok Hopwood | 0-1-0 REC | #5644 | |
 | Brok Weaver | 1-2-0 UFC | #4100 | |
 | Bruce Bouisson | 1-0-0 REC | #7638 | |
 | Bruce Souto | 1-2-0 REC | #5059 |  |
 | Bruna Brasil | 3-5-0 UFC | #1196 | |
 | Bruna Ellen | 1-2-0 REC | #5139 | |
 | Brunno Ferreira | 6-3-0 UFC | #454 | |
 | Bruno Assis | 0-2-0 REC | #6091 | |
 | Bruno Azevedo | 1-1-0 REC | #4313 | |