Samuel Alexander Boyle Jr. was an American college football player and coach. He served as the head football coach at the Virginia Military Institute (1898–1899), Pennsylvania State University (1899), and Dickinson College (1900), compiling a career coaching record of 14–12–1.

The VMI Keydets football team represents the Virginia Military Institute in Lexington, Virginia. The Keydets compete in the Southern Conference of the NCAA Division I FCS, and are coached by Danny Rocco, named head coach on December 3, 2022. VMI plays their home contests at 10,000-seat Alumni Memorial Field, as they have since 1962.