John Duggan may refer to:
- John Duggan (rugby, born 1929) (1929–2022), English former rugby union and rugby league footballer
- John Duggan (rugby union, born 1948), Irish former Leicester Tigers winger
- John Duggan (bishop) (1918–2000), Bishop of Tuam, Killala, and Achonry, 1970–1985
- Jack Duggan (politician) (1910–1993), Australian politician for Electoral district of Toowoomba West
- Johnny Duggan (jockey), on racehorse Gold and Black
- John Duggan, main character in the TV series Duggan
- John Duggan, character in the TV series The Thick of It
- Jack Duggan (ice hockey) (1897–1977), ice hockey player
- Jack Duggan (politician) (1910–1993), member of the Queensland Legislative Assembly
- John Duggan (political scientist) of the Duggan–Schwartz theorem
See also
Topics referred to by the same termThis disambiguation page lists articles about people with the same name.If an internal link led you here, you may wish to change the link to point directly to the intended article. Category: