Ó Cuana
Ó CUANA, Ó CUANACH—I—O Cowna, O Cwony, O Coony, Cooney; 'descendant of Cuana' (handsome, elegant); the name of a family who, according to O'Dugan, were chiefs of Clann Fergus in Ulster. At the end of the 16th century it was most common in Sligo and Cork.
Alphabetical Index to Irish Surnames