Michael O'Sullivan may refer to:

• Michael O'Sullivan (actor) (1934–1971), American actor
• Michael O'Sullivan (cricketer) (born 1973), former English cricketer
• Michael O'Sullivan (footballer) (born 1962), former Australian rules footballer
• Michael O'Sullivan (hurler) (born 1990), Irish hurler who played for Cork
• Michael O'Sullivan (poet) (born 1959), Irish poet
• Michael O'Sullivan (politician) (1784–1839), Lower Canada lawyer, militia officer, politician and judge
• Michael O'Sullivan (soccer) (born 1995), English-American soccer player
• Sir Michael Neil O'Sullivan (1900–1968), Australian politician and lawyer
• Mickey O'Sullivan (born 1952), Irish retired Gaelic football manager, selector, and former player

• Michael O'Sullivan, character in Road to Perdition

• Michael Sullivan (disambiguation)
• O'Sullivan (surname)

Topics referred to by the same term

This disambiguation page lists articles about people with the same name.
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