Ó Gealbháin
Ó GEALBHÁIN—I—O Gealwaine, O Gallivain, O Galvane, Gallivan, Galvan, Galven, Galvin; 'descendant of Gealbhán' (bright-white); the name of a Dalcassian family, now numerous in Munster, especially in Kerry; also found in Co. Roscommon.
Alphabetical Index to Irish Surnames