Martin Henry Garrity Jr. (January 30, 1900 – August 30, 1972) was an American football and baseball player, coach of football, basketball, and baseball, and college athletics administrator.

He served as the head football coach at Wake Forest University from 1923 to 1925, compiling a record of 19–7–1.

Garrity was also the head basketball coach at Wake Forest from 1923 to 1925, tallying a mark of 33–14.

He served as the head baseball coach at the University of Missouri in 1923 and at Wake Forest from 1924 to 1925.

This biographical article relating to a college football coach first appointed in the 1920s is a stub.