75%RatingSave Gender Masculine Usage Irish Meaning & HistoryExpand Links Irish form of Magnus. Related NamesFamily Tree·Details RootmagnusVariantManusOther Languages & CulturesMagnus, Mogens(Danish) Mauno, Manu, Maunu(Finnish) Magnús(Icelandic) Magnus(Late Roman) Mack(Medieval English) Magnus(Medieval Scandinavian) Magnus, Magne(Norwegian) Magnus, Måns(Swedish) Surname DescendantsMac Maghnuis, McManus(Irish)