Leticia Ribeiro N. Dos Santos (born February 24, 1979 in Rio de Janeiro, Brazil) is a 4th degree Brazilian jiu-jitsu black belt and multiple time world champion in the sport. She is associated with the Gracie Humaita jiu-jitsu school. Ribeiro is considered one of the top 10 best Brazilian jiu-jitsu female fighters of all time having been distinguished with a mention in the IBJJF Hall of Fame.