William Elwyn "Moose" Dunstan Jr. (February 4, 1915 – March 12, 1999) was an American football player.

He played professionally in the National Football League (NFL) as a tackle for the Chicago Cardinals from 1938 to 1939 and the Cleveland Rams from 1939 to 1941.

He attended Castlemont High School in Oakland, California.

He also played for the Oakland Giants of the Pacific Coast Football League (PCFL) in 1943.

[1][3] After his football career ended, Dunstan lived in Oakland, California.