Mun is a surname of multiple origins.
Notable people with the surname include: Eric Mun (born 1979), South Korean rapper Nami Mun, Korean American writer Thomas Mun (1571–1641), English writer on economics Thomas Mun (MP) (1645-1692), English politician, MP
See also Moon (Korean name), Korean family and given name Mun (disambiguation) Munn de Mun