Mac Airteáin
Mac AIRTEÁIN—IV—M'Keartan, M'Curtaine, M'Curtayne, Curtayne, Curtain, Curtin, etc.; 'son of Artán' (diminutive of Art); an attenuated form of Mac Artáin, which see; peculiar to Co. Cork. See also Mac Cairteáin.
Alphabetical Index to Irish Surnames