Finnegan Prev Random Next GenderMaleOriginCeltic/Gaelicfair. Finians were warrior-followers of 3rd century legendary Irish hero Finn Mac Cumhail.IrishFair; Irish surname given notoriety by James Joyce''s novel Finnegan''s WakeSyllables3ThemesExotic, SurnamePronunciationf(i)-nne-gan Prev Random Next Share this:TweetShare on Tumblr