Jacob Christopher "Tito" Ortiz (born January 23, 1975) is an American mixed martial artist from Huntington Beach, California. Ortiz has emerged as one of the sport's biggest stars, becoming the biggest pay-per-view draw of 2006 and appearing on the covers of various magazines, such as Black Belt Magazine.

Ortiz holds notable wins over Vladimir Matyushenko, Wanderlei Silva, Evan Tanner, Guy Mezger, Ken Shamrock (three times), Vitor Belfort, Patrick Côté, Yuki Kondo, and Forrest Griffin.