William Francis McKinley (May 13, 1910 - August 1, 1980) was a professional baseball umpire who worked in the American League from 1946 to 1965.

[2] Before training as an umpire, McKinley had worked as a meat cutter and was a catcher in semipro baseball.

His umpiring career began in 1939 in the Ohio State League, where he was paid $100 per month and had to cover his own expenses.

In a 1955 game, McKinley ejected outfielder Irv Noren, who became the first player on the New York Yankees to be suspended since 1942.

[7] In 1965, a mandatory retirement rule forced McKinley to end his umpiring career at the age of 55.