Ó Carra
Ó CARRA—I—O Carra, O Carr, O Karr, Carr, Karr, Kerr; 'descendant of Carra' (spear); a common Ulster surname, the same as that written Ó Cairre in the Annals of Ulster and Four Masters. Also found in Co. Galway. See Ó Corra.
Alphabetical Index to Irish Surnames