Mackley is a surname. Notable people with the surname include:
Alan Mackley (1913–1982), Australian cricket umpire Arthur Mackley (1865–1926), English actor and film director Garnet Mackley (1883–1886), New Zealand businessman and politician Geoff Mackley, New Zealand photographer George Mackley (1900–1983), English wood engraver Ian Mackley (born 1942), British diplomat Shane Mackley, Australian rugby league player
See also Carl Mackley Houses, apartment complex in Philadelphia, Pennsylvania