Tsuneharu Sugiyama (杉山 恒治, Sugiyama Tsuneharu, 23 July 1940 – 22 November 2002) was a Japanese amateur and professional wrestler. He competed in the men's Greco-Roman light heavyweight at the 1964 Summer Olympics. After his competitive career, he worked in International Wrestling Enterprise, All Japan Pro Wrestling and New Japan Pro-Wrestling under the ring name of Thunder Sugiyama, later becoming an actor and tarento until his death.