Tous les combattants
 | Ariane da Silva | 6-8-0 UFC | #680 |  |
 | Ariel Beck | 0-1-0 UFC | #6059 |  |
 | Arif Krasniqi | 1-0-0 REC | #2287 |  |
 | Arijan Topallaj | 5-2-0 REC | #321 |  |
 | Aris Arguello | 0-2-0 REC | #6465 | |
 | Arisa Matsuda | 1-1-0 REC | #2702 |  |
 | Aristides Vinicius | 2-1-0 REC | #1710 | |
 | Arivaldo Lima da Silva | 0-1-0 REC | #6649 | |
 | Arjan Bhullar | 3-1-0 UFC | #3230 |  |
 | Arkadiusz Mruk | 0-1-0 REC | #7087 |  |
 | Arkadiusz Wrzosek | 7-2-0 REC | #808 | |
 | Arlene Blencowe | 1-2-0 REC | #5135 |  |
 | Arman Ospanov | 0-1-0 REC | #6452 |  |
 | Arman Tsarukyan | 10-2-0 UFC | #32 |  |
 | Armand Herczeg | 1-2-0 REC | #1404 |  |
 | Armando Villarreal | 0-1-0 REC | #5490 | |
 | Armani Webster | 0-1-0 REC | #5641 | |
 | Armen Petrosyan | 3-4-0 UFC | #1393 | |
 | Arnaldo Moska | 0-1-0 REC | #6253 | |
 | Arnaud Clamens | 0-1-0 REC | #7892 |  |
 | Arnaud Prigent | 2-1-0 REC | #1883 | |
 | Arnold Allen | 12-3-0 UFC | #81 |  |
 | Arnold Jimenez | 0-2-0 REC | #4109 | |
 | Arnold Quero | 0-1-0 REC | #4953 | |
 | Aron Kristjansson | 0-1-0 REC | #7162 |  |