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Harold Sharp is an American practitioner and author of judo.
Sharp was deployed with the army in 1945 to Japan and learned about martial arts. He would earn his first black belt from the Kodokan. He was a student of Takahiko Ishikawa. He was the winner of the first Foreign Judo Championships in 1954. He become captain of the 1955 US Goodwill Team. Sharp though stated that the Captain was John Osaka and he was a member of the team. He co-authored The Sport of Judo, Boys' Judo: Sport, Defense, and The Techniques of Judo (Tuttle Martial Arts). He served as a technical advisor for "Mrs Judo", a movie about Keiko Fukuda.