Marvin Crosby "Moose" Bass (August 28, 1919 – December 3, 2010)[1][2] was the head coach of The College of William & Mary's football team in 1951.

He also coached the South Carolina Gamecocks football team for five seasons.

Bass, a native of Petersburg, Virginia, was a member of the winningest football team in William & Mary history.

The league lured such NFL name players as Larry Csonka, Paul Warfield and Jim Kiick.

While at William & Mary, Bass was All-State and All-Southern Conference while helping the Indians to defeat the Oklahoma Sooners 14–7 in the final 1942 game.