Save Type Surname (from occupation) Usage Scottish, Irish Expand LinksMeaning & History Anglicized form of Gaelic Mac Giolla Eoin meaning "son of the servant of EOIN". DetailsRelated Names VariantsMac Gilleain, MacLean, McLean(Scottish) Mac Giolla Eoin, MacLean, McLean, Monday(Irish) Categories anglicizations Entry updated November 16, 2019 ·