This article is about the surname "Keegan". For the given name, see Keegan (given name).
Keegan is an Anglicisation of the Irish clan name Mac Aodhagáin. The name means "son (or descendant) of Aodhagán" (a diminutive of the Irish nameAodh, meaning "fire" or "fiery"). It is found in counties Wicklow, Dublin, Leitrim and Roscommon.[1]