Petros D. "Peter" Clentzos (June 15, 1909 in Oakland, California — September 11, 2006 in Rancho Mirage, California) was an American pole vaulter and the son of Greek immigrants who competed for Greece in the 1932 Summer Olympics. Clentzos was born in Oakland, California. His father, a carpenter, and his mother had emigrated to the United States from Kythera, an island in Greece. He tried out as a pole vaulter for the United States team in the 1932 Olympics, but fell just short of qualifying. His Greek heritage allowed him to vie for one of the 16 spots on Greece's team.