Hart-Davis is a surname. Notable people with the surname include:
Adam Hart-Davis (born 1943), English scientist, author, photographer, historian and broadcaster; son of Rupert Hart-Davis and brother of Duff Hart-Davis Alice Hart-Davis (born 1963), British journalist and author; daughter of Duff Hart-Davis Deirdre Hart-Davis (1909–1999), English socialite; sister of Rupert Hart-Davis Duff Hart-Davis (1936–2025), British biographer, naturalist and journalist; son of Rupert Hart-Davis, brother of Adam Hart-Davis, and father of Alice Hart-Davis
Jack Hart-Davis (1900–1963), South African cricket umpire Rupert Hart-Davis (1907–1999), British publisher, literary editor, and man of letters; brother of Deirdre Hart-Davis and father of Duff and Adam Hart-Davis
Others Hart Davis (1791–1854), British politician, MP for Colchester 1812–18 Hart-Davis, MacGibbon, British publishing house Lyttelton/Hart-Davis Letters, Rupert Hart-Davis' published volumes of correspondence with George William Lyttelton William Hart Davis, pen name of Bill Pronzini (born 1943), American writer William Watts Hart Davis (1820–1910), American brigadier general
See also Hart (surname) Davis (surname)