Duncan MacIntyre or Duncan McIntyre may refer to: Duncan Ban MacIntyre (1724–1812), Scottish Gaelic poet Duncan MacIntyre (New Zealand politician) (1915–2001), New Zealand politician Duncan McIntyre (businessman) (1834–1894), Canadian businessman Duncan McIntyre (explorer) (1831–1866), Australian explorer Duncan A. McIntyre, American aviation pioneer Duncan John McIntyre (1842–1920), Canadian lawyer and political figure from Ontario