Save Type Surname (from occupation) Usage Irish, Scottish Meaning & HistoryExpand Links Variant of McClelland. Related NamesDetails Rootsgilla + FaolánVariantsMacClellan, MacClelland, Mac Giolla Fhaoláin, McClelland(Irish) MacClellan, MacClelland, McClelland(Scottish) MacGilleFhaolain(Scottish Gaelic)