John Henry "Harry" James (June 20, 1881 - October 16, 1947) was an American football quarterback and manufacturer. He was the starting quarterback for Michigan's undefeated, national championship 1903 "Point-a-Minute" football team that outscored opponents 565 to 6. James later went into the manufacturing business. He was the founder of The Motor Foundry Co., a manufacturer of automobile parts in Detroit, and the James Motor Valve Company, which developed the innovative "James Valve" in the mid-1920s. He also served as the general manager of the Monarch Steel Castings Co., an innovator in the Solvay process.