Mansour \m(a)-nsour, man-sour\ as a boy's name is a variant of Mansur (Arabic), and the meaning of Mansour is "one helped by God and is victorious".
The baby name Mansour sounds like Mansoor. Other similar baby names are Manus, Mansel, Mansell, Manzo, Maynor, Mazor, Mentor, Minor, Mynor, Menor, Minster, Nassor and Winsor.