Mulrooney is a surname of Irish origin from the Irish . Notable people with the surname include:

Belinda Mulrooney (1872–1967), Irish-American entrepreneur who made a fortune in the Klondike Gold Rush John Mulrooney (1958–2025), American comedian, actor, and television host Richard Mulrooney (born 1976), American major league soccer player Máel Sechnaill mac Máele Ruanaid - Malachy MacMulrooney - high king of Ireland

See also Mulroney