Origin on the Isle of Mull (Duart castle)
McLean Name Meaning
Scottish: Anglicized form of Gaelic Mac Gille Eathain, a patronymic from a personal name meaning ‘servant of (Saint) John’. The family bearing this name were chieftains in several islands of the Inner Hebrides.
Irish: Anglicized form of Gaelic Mac Giolla Eóin, from a different Gaelic form of Johannes (John).