Douglas A. Baker (born April 19, 1934) better known professionally as Ox Baker, is an American former professional wrestler and actor, and was feared for his dreaded finishing move, the Heart Punch, sometimes called the "Hurt Punch", after Baker's famous catchphrase "I love to hurt people!" He has appeared in several movies including Blood Circus and Escape from New York.

Ox Baker, oldest of five siblings (three brothers and one sister), began as an amateur high school wrestler, boxer and football player in his adopted hometown of Waterloo, Iowa in 1962 before getting thrown out of school. He also played football for two years in the armed forces. In the early 1960s Ox approached Kansas City, Missouri promoters about wrestling and was paid $300 for his first night. Following that night he went into training with Buddy "Killer" Austin, Pat O'Connor, and Bob Geigel. A couple of years later he was ready, standing 6'5" and weighing 342 pounds (hence the nickname "Ox"). He began his pro wrestling career by defeating Frank Hickey in Kansas City, and later the Missouri Mauler as well. As time went on he was winning a majority of his matches by knock out caused by the Heart Punch (which he borrowed from Stan Stasiak) and adapted into his own ring arsenal. He would later rename the move the Hurt Punch after Stasiak objected.