Egan (surname)
Egan is a surname that comes from the Irish Gaelic name Mac Aodhagáin. It is derived from the root 'aedh' meaning little fire and the diminutive 'an' hence 'the little bright-eyed one'. Variations include: Egan, Eagan, Keegan, McKeegan, MacEgan, Kegan, Keagan and Egen. The name originates from County Tipperary (north). The Egans have been around for thousands of years and own a castle in Tipperary, Ireland. That castle is Redwood Castle.