Maureen \ma(u)-reen\ as a girl's name is pronounced maw-REEN. It is of Irish and Gaelic origin, and the meaning of Maureen is "star of the sea". English form of Mairin, a pet form of Maire the Irish Gaelic form of Mary. Maurissa and Maurisa may also be feminine forms of Maurice. See also Mara and Morisa. Actresses Maureen O' Sullivan, Maureen O'Hara.