Save Type Surname (from given name) Usage Irish Pronounced Pron. /ˈoː ˈca.lˠə.xaːnʲ/ [key·simplify] Meaning & HistoryExpand Links Irish Gaelic form of Callahan. Related NamesDetails RootCellachán (given name)VariantsCallaghan, Callahan, O'Callaghan
