William Donovan

William Donovan or Bill(y) Donovan may refer to:


 * "Wild" Bill Donovan (1876–1923), pitcher and manager in Major League Baseball
 * William J. Donovan (1883–1959), American soldier, lawyer and intelligence officer, best remembered as wartime head of the Office of Strategic Services (OSS)
 * Billy Donovan (born 1965), head coach of the Florida Gators men's basketball team
 * Bill Donovan (Boston Braves pitcher) (1916–1997), pitcher in Major League Baseball