Callow is a surname. Notable people with the surname include:
Christos Callow (born 1955), Greek singerEleanor Callow (born 1927), former Canadian baseball playerHenry Callow (died 2006), Manx judgeJune Callow, fictional character in Black MirrorKenneth Callow (1901–1983), British biochemistMichael Callow, fictional character in Black MirrorPaul Callow, convicted Canadian rapistSimon Callow (born 1949), English actorWilliam Callow, (1812–1908), British painterWilliam G. Callow (born 1921), American judge