Sergeant Major Clinton A. Puckett (March 6, 1926 – September 3, 2002) served as the sixth Sergeant Major of the Marine Corps from 1 February 1973, until he retired from active duty on 31 May 1975. He served in World War II, Korea, and Vietnam; receiving the Navy Cross for extraordinary heroism for actions during the Korean War. He was the last Sergeant Major of the Marine Corps to have served in World War II.