Mark López Mendieta is an American taekwondo practictioner. Mark represented the United States in the 2008 Summer Olympics in Beijing, China. He advanced to the men's 68kg Gold Medal Match where he lost to Korea's Tae-Jin Son on a last second hit, giving him the silver medal. Mark is the younger brother of Olympic gold medalist Steven López and their taekwondo coach Jean López and older brother of Olympian Diana López.