Saulo Mendonça Ribeiro Filho (born July 2, 1974) is a Brazilian submission grappler and former mixed martial artist.

[16] Shortly after receiving his black belt from Royler Gracie on November 27, 1995, Ribeiro won the Brazilian Nationals Lightweight Title.

[20] Ribeiro has also been coach to high-level grappling competitors such as World Jiu-Jitsu Champion Rafael Lovato Jr., and MMA fighter Diego Sanchez.

He defeated Kouji Kanechika and World Jiu-Jitsu Champion Romulo Barral before losing to the much larger Fabrício Werdum in the semifinal on judges' decision.

After losing on another judges' decision in the third-place dispute to Jeff Monson, Ribeiro announced his retirement from professional jiu-jitsu and grappling competition.