William J. Magee (July 6, 1875 in New Brunswick, Canada) was a Major League Baseball pitcher.

A right-handed pitcher for the 1898 Louisville Colonels, Magee had a record of 16–15.

He then continued his career with five National League teams in four more seasons.

He walked more than twice as many batters as he struck out.

This biographical article relating to a Canadian baseball pitcher is a stub.