Millner is a surname. Notable people with the surname include:
David Millner (born 1938), English cricketer Denene Millner (born 1968), American author and journalist F. Ann Millner, American educator Guy Millner (born 1936), American businessman James Millner (doctor) (1830–1875), early Australian doctor and pioneer Jim Millner AM (1919–2007), pharmacist and Australian corporate executive John J. Millner (born 1951), American politician Joshua Millner (1849–1931), British sport shooter Robert Millner (born 1950), Australian corporate executive Setric Millner Jr. (born 2000), American basketball player Tivadar Millner (1899–1988), Hungarian inventor Wayne Millner (1913–1976), American football player Madlyn Millner Kahr (née Millner; 1913–2004), American art historian, and educator