Save Type Surname (from given name) Usage Irish Pronounced Pron. MUR-fee(English) [key·IPA] Meaning & HistoryExpand Links Anglicized form of Irish Ó Murchadha meaning "descendant of Murchadh". This is the most common Irish surname. Related NamesDetails VariantsMurdock, Ó MurchadhaOther Languages & CulturesMurdoch(Scottish) Categories anglicizations, brand names, child actors, comedians, folk heroes, guitarists, isograms, Kennedy family, NBA players, Saturday Night Live cast