Marvin Winkler (born February 18, 1948) is an American former professional basketball player.
A 6'1" guard from the University of Louisiana at Lafayette, Winkler played one season (1970–71) in the National Basketball Association as a member of the Milwaukee Bucks.
He averaged 2.7 points per game and won a league championship when Milwaukee defeated the Baltimore Bullets in the 1971 NBA Finals.
Winkler spent the 1971–72 season with the Indiana Pacers of the American Basketball Association.