Save Type Surname (from given name) Usage Scottish, Irish Other Forms FormsMac Pháidín, McFadden, Fadden, MacFadyen, McFadyen, McFaddin, McFadin, McFadwyn, McFadyean, MacFadzean, McFadyon, McFayden, Fadyen, Faden, Fadin, Fadwyn Meaning & History Variant of Mcfadden.