Magowan is a surname. Notable people with the surname include:
Alistair Magowan (born 1955), British Anglican bishopDavid Magowan (born 1983), Northern Ireland footballerJohn MaGowan (born 1941), Northern Ireland darts playerJohn Hall Magowan (died 1951), British diplomatKate Magowan (born 1975), English actressKen Magowan (born 1981), Canadian ice hockey playerPeter Magowan (born 1942)Peter Magowan (lawyer) (1762–1810), Canadian politicianSamuel Magowan (1910–1976), Northern Ireland politician