Submitted Name Save Type Surname Usage Scottish, Irish Pronounced Pron. KLAYN [key] Other Forms FormsMacLean, MacLaine, MacClaine. Edit Status Status [show contributorhide contributor] Added 5/10/2020 by anonymous Meaning & History Anglicized form of the Gaelic Mac Gille Eathain, a patronymic name meaning "son of the servant of Saint John."