Ó Fiacháin
Ó FIACHÁIN—I—O Fighane, O Feehan, O Pheane, Feighan, Feehan, Fehane, Feghan, Fehan, Feane, Fane, (Fegan, Fagan); 'descendant of Fiachán' (diminutive of fiach, a raven); same as Ó Féichín, which see; a scattered surname.
Alphabetical Index to Irish Surnames