William K. Coon (March 21, 1855 – August 30, 1915) was a Major League Baseball player.
Coon played for the Philadelphia Athletics in 1875 and 1876.
Coon played 30 games at Outfield, 22 games as a Catcher.
4 games as a Second Baseman and Third baseman, and 2 games a pitcher.
He was born in Pennsylvania and died in Burlington, New Jersey.