Claude "Butch" Harmon Jr. (born August 28, 1943) is an American golf instructor and former professional player.

His father was the head pro at the nearby Winged Foot Golf Club in Mamaroneck, New York.

The family also lived part of the year in Florida, when Butch's father served as the winter professional at the Seminole Golf Club.

[2] He has also worked with other major champions such as Ernie Els, Stewart Cink, Greg Norman, Davis Love III, Fred Couples and Justin Leonard, and with younger stars such as Nick Watney and Rickie Fowler.

Butch has also appeared in an episode of the TV show Pawn Stars in which he taught Chumlee to play golf, along with Corey Harrison.

Butch's other brother Dick was the golf professional at the River Oaks Country Club in Houston, Texas from 1977 to 2001.