Herschel Clinton "Bill" Prough (November 28, 1887 – December 29, 1937), was a professional baseball player. Prough was a right-handed pitcher, pitching in the Major Leagues for one season, 1912 with the Cincinnati Reds. Prough had an extended and successful minor league career, pitching for 17 seasons and compiling over 4600 innings pitched.
Prough was born in Markle, Indiana and died in Richmond, Indiana.