Joan-Benjamin Gaba (born 7 January 2001) is a French judoka. He won the silver medal in the men's 73kg event at the Paris 2024 Summer Olympics as well as the gold medal in the Mixed team event as a member of the French team.
Gaba was born in Sèvres, in the Hauts-de-Seine department, into a family with roots in the French overseas department of Martinique.