Ó Féichín
Ó FÉICHÍN—I—O Feahine, O Fehin, O Fein, Feehin, Fehen, Feen, Feane, Fane; 'descendant of Féichín' (diminutive of fiach, a raven); a variant of Ó Fiacháin, which see; originally a West Connacht surname. The family is mentioned by MacFirbis.
Alphabetical Index to Irish Surnames