Marcin Tybura (born November 9, 1985) is a Polish professional mixed martial artist. He currently competes in the Heavyweight division for the Ultimate Fighting Championship (UFC). A professional competitor since 2011, Tybura previously fought for M-1 and was an M-1 Global Heavyweight Champion and M-1 Grand Prix 2013 Heavyweight Champion. As of March 19, 2024, he is #8 in the UFC heavyweight rankings.