Sorted alphabetically by last name · 2729 fighters
| Name | Nickname | |
|---|---|---|
| AT | Aleksandre Topuria | "El Conquistador" |
| AK | Aleksei Kunchenko | |
| AO | Aleksei Oleinik | "The Boa Constrictor" |
| AA | Alen Amedovski | |
| AC | Alessandro Costa | "Nono" |
| AD | Alessio Di Chirico | "Manzo" |
| AS | Alessio Sakara | "Legionarius" |
| Alex Andrade |
| "El Toro" |
| AC | Alex Caceres | "Bruce Leeroy" |
| AC | Alex Chambers | "Astro Girl" |