Martin Kennedy may refer to: Martin Kennedy (composer) (born 1978), English composer of contemporary classical music Martin Kennedy (hurler) (1898–1983), Irish hurler Martin Kennedy (Kansas politician) Martin Kennedy (New Zealand politician) (1836–1916), Member of Parliament from Westland, New Zealand Martin Kennedy (rugby league) (born 1989), Australian professional rugby league footballer Martin J. Kennedy (1892–1955), U.S. Representative from New York Martin Kennedy, a character in Retreat (2011 film)