Mac Giolla Íosa
Mac GIOLLA ÍOSA—IV—M'Illiosa, MacIleese, MacAleese, MacAleece, MacAlish, MacLeese, MacLees, Maclise, MacLeesh, MacGleish, MacCleish, Gilleece, Gillis, &c.; 'son of Giolla Íosa' (servant of Jesus); an Ulster surname; also a Scottish surname.
Alphabetical Index to Irish Surnames