Hinkley is a surname. Notable people with the surname include:
Brent Hinkley (born 1962), American actor
Clayton Hinkley (born 1989), Australian rules footballer
Daniel J. Hinkley, American horticulturist
David V. Hinkley, American statistician
Ken Hinkley (born 1966), Australian rules footballer and coach
Tim Hinkley (born 1946), English musician
Tommy Hinkley (born 1960), American actor
Fictional characters:
Ralph Hinkley, character in the television series The Greatest American Hero
Roy Hinkley, character in the television series Gilligan's Island
