William James McAvoy (October 16, 1884 – September 17, 1956) was an American football, basketball, and baseball coach.

A native of Hazleton, Pennsylvania, McAvoy attended Lafayette College, where he played football as a fullback and baseball as a left fielder.

In the fall of 1906, he was elected captain of the 1907 Lafayette football team, but did not return to school the following year, instead going into business.

[1][2] In 1908, he played as a left fielder for the Rochester Bronchos of the Eastern League.

[3] # denotes interim head coach Pound sign (#) denotes interim head coach.