Ó Dubhchonna
Ó DUBHCHONNA—I—O'Dooghany, Dougheny, Dogheny, Doheny, Deheny, Dahony, Dawney, &c.; 'descendant of Dubhchonna' (black Conna, a man's name); the name of a family of the Corca Laoighdhe, in South-west Cork; now scattered through Munster.
Alphabetical Index to Irish Surnames