Brianna Ste-Marie (born 30 August 1996) is a Canadian submission grappler, and Brazilian jiu-jitsu (BJJ) black belt athlete. An IBJJF World No-Gi, Pan American (Gi and No-GI), European and American national jiu-jitsu champion in colored belts, as well as a Combat Jiu-Jitsu and Medusa champion; Ste-Marie is a 2022 World No-GI champion, a 2023 World Jiu-Jitsu Championship medalist and the 2022 ADCC Submission Grappling under 60 kilograms (130 lb.) silver medalist.