Jeferson dos Santos is an active Brazilian professional MMA fighter from Sinop, Mato Grosso, Brazil in the Featherweight division. He holds a professional record of 7-9, known for finishing opponents (5 by KO/TKO, 1 by submission). He is currently ranked #4295 Men's Pound for Pound and #763 Featherweight by FightTruth's model. He has lost 3 consecutive fights. He is a former SFC Vacant Featherweight Championship champion in 2024.