Bayntun is an English surname. Notable people with the surname include:
Amelia Bayntun (1919–1988), English actress Edward Bayntun (disambiguation), several people George Bayntun (1873–1940), English bookseller, bookbinder and collector Henry Bayntun (disambiguation), several people
See also Bayntun-Rolt baronets Bayntun-Sandys baronets Baynton (disambiguation)