Beatriz Mesquita, also known as Bia Mesquita is a Brazilian Jiu Jitsu (BJJ) competitor and mixed martial artist. She has won 24 titles at black belt level in the four major Gi Championships. With 10 gold medals, as of Worlds 2021, she holds the record for the most IBJJF World Championship titles at black belt level and is a member of the IBJJF Hall of Fame. As of June 20, 2026, she is #11 in the Meta UFC women's bantamweight rankings.