William or Bill(y) Donovan may refer to:
Sports Bill Donovan (1876–1923), pitcher and manager in Major League Baseball Bill Donovan (Boston Braves pitcher) (1916–1997), pitcher in Major League Baseball Billy Donovan (born 1965), American basketball coach and former player William F. Donovan (1865–1928), Harvard University coach William Fitz Donovan (1873–1930), American football player and coach William Donovan III (born 1992), American basketball coach
Other William J. Donovan (1883–1959), American soldier, lawyer, intelligence officer and wartime head of the Office of Strategic Services William Lovery Donovan, owner of the historic Star Lite Motel
See also William Donovan Joynt (1889–1986), Australian recipient of the Victoria Cross Donovan Williams (disambiguation) Donovan (disambiguation)