People who have competed at Australian Brazilian jiu-jitsu and grappling events. Australia only, for now. See Australian BJJ rankings for recorded wins by belt, state, and ruleset.
| Alex Jensen | White | Academia BJJ Lifestyle Australia |
| Alex Jiao | Unknown belt | Emerge Martial Arts |
| Alex Jovanovski | Black | Brazilian Jiu Jitsu Factory |
| Alex Kane | Blue | Gracie Elite Australia |
| Alex Kang | Blue | Gracie Barra West Ryde |
| Alex Kennedy | White | Gracie Barra Shellharbour |
| Alex Khaze | Grey | Gracie Barra Sydney |
| Alex Khuu | White | UFC Gym Wetherill Park |
| Alex Kim | White | Ironfist gym |
| Alex Kitanov | White | SASSOM MMA |
| Alex Kolmet | White | Brothers Brazilian Jiu Jitsu |
| Alex Kono | Brown | Lemos Brazilian Jiu-Jitsu Academy |
| Alex Koutsomihalis | Blue | Coringa Jiu-Jitsu |
| Alex La | Orange | Australia ASBJJ |
| Alex Laham | White | House Of Lions MMA |
| Alex Lambros | Blue | Locals Jiu Jitsu Academy |
| Alex Lamond | White | SJJA Team |
| Alex Lanyon | Black | Absolute MMA |
| Alex Le | Blue | Kings Academy Australia |
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