Tous les combattants
 | Ariane da Silva | 6-8-0 UFC | #663 |  |
 | Ariel Beck | 0-1-0 UFC | #6124 |  |
 | Arif Krasniqi | 1-0-0 REC | #2251 |  |
 | Arijan Topallaj | 5-2-0 REC | #288 |  |
 | Aris Arguello | 0-2-0 REC | #6533 | |
 | Arisa Matsuda | 1-1-0 REC | #2665 |  |
 | Aristides Vinicius | 2-1-0 REC | #1667 | |
 | Arivaldo Lima da Silva | 0-1-0 REC | #6611 | |
 | Arjan Bhullar | 3-1-0 UFC | #3216 |  |
 | Arkadiusz Mruk | 0-1-0 REC | #7037 |  |
 | Arkadiusz Wrzosek | 7-2-0 REC | #784 | |
 | Arlene Blencowe | 1-2-0 REC | #5125 |  |
 | Arman Ospanov | 0-1-0 REC | #6463 |  |
 | Arman Tsarukyan | 10-2-0 UFC | #31 |  |
 | Armand Herczeg | 1-2-0 REC | #1353 |  |
 | Armando Villarreal | 0-1-0 REC | #5443 | |
 | Armani Webster | 0-1-0 REC | #5599 | |
 | Armen Petrosyan | 3-4-0 UFC | #1379 | |
 | Arnaldo Moska | 0-1-0 REC | #6180 | |
 | Arnaud Clamens | 0-1-0 REC | #7875 |  |
 | Arnaud Prigent | 2-1-0 REC | #1847 | |
 | Arnold Allen | 12-3-0 UFC | #76 |  |
 | Arnold Jimenez | 0-2-0 REC | #4083 | |
 | Arnold Quero | 0-1-0 REC | #4894 | |
 | Aron Kristjansson | 0-1-0 REC | #7110 |  |