Mulgan is a surname. Notable people with the surname include: Alan Mulgan (1881–1962), New Zealand writer and broadcaster, father of John Edward Mulgan (1857–1920), New Zealand writer and educator, father of Alan Geoff Mulgan (born 1961), British academic John Mulgan (1911–1945), New Zealand writer and editor, father of Richard Richard Mulgan (1940–2024), New Zealand political scientist, son of John Tim Mulgan, New Zealand philosopher