Maureen O'Sullivan (disambiguation)

Maureen O'Sullivan was an Irish actress.

Maureen O'Sullivan may also refer to:


 * Maureen O'Sullivan (politician) (born 1951), Irish independent politician
 * Maureen O'Sullivan (spy) (1918–1994), member of the Special Operations Executive
 * Maureen Donovan O'Sullivan (1886–1966), historian
 * Maureen O'Sullivan (psychologist), see Wizards Project