Ennis is a surname. Notable people with the surname include:
Bruce Ennis (born 1939), American politicianDel Ennis (1925–1996), American Major League baseball playerDelloreen Ennis-London (born 1975), Jamaican sprint hurdlerEdward Ennis (1908–1990), American lawyerEthel Ennis (born 1932), an American jazz musicianGarth Ennis (born 1970), Northern Irish comics writerGeorge Ennis (born 1953), Northern Irish politicianGlen Ennis (born 1964), Canadian rugby playerJames Ennis (cricketer) (1900-1976), Irish cricketerJames Ennis (basketball) (born 1990), American professional basketball playerJeffrey Ennis (born 1952), British politicianJessica Ennis (born 1986), British heptathleteJohn Ennis (actor) (born 1964), American actorJohn Ennis (baseball) (born 1979), American Major League baseball playerJohn Ennis (poet) (born 1944), Irish poetJohn Matthew Ennis, known as J. Matthew Ennis (1864–1921), organist and academic in Adelaide, South AustraliaMadeleine Ennis, Northern Irish pharmacologistMichael Ennis (born 1984), Australian rugby league footballerMick Ennis (born 1901), Australian rules footballerPaul Ennis (born 1990), English footballerRachel Ennis (born 1987), British gymnastSéamus Ennis (1919-1982), Irish folk musician and singerSkinnay Ennis (1907 - 1963), American jazz and pop music bandleader and singerSue Ennis, American songwriterTyler Ennis (basketball), Canadian NBA basketball playerTyler Ennis (ice hockey), Canadian NHL hockey player