Michael O'Halloran may refer to:

• Mick O'Halloran (1893–1960), Australian Labor Party (ALP) politician
• Michael O'Halloran (British politician) (1933–1999), British Member of Parliament for Islington North, London, 1969–1983
• Michael O'Halloran (Clare hurler) (born 1971), Irish sportsman
• Michael O'Halloran (Cork hurler) (born 1997), Irish hurler
• Michael O'Halloran (novel), a novel by Gene Stratton-Porter
  • Michael O'Halloran (1923 film), a 1923 American silent drama film, based the novel
  • Michael O'Halloran (1937 film), a 1937 American drama film, based the novel
  • Michael O'Halloran (1948 film), a 1948 American drama film, based the novel
• Michael O'Halloran (footballer) (born 1991), Scottish footballer (Bolton Wanderers, St. Johnstone, Rangers)

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