Meaning A male name of Irish origins, it means "Son of fairhaired". Origin of Finnigan Celtic , Irish Popular Middle Names Andrew, Ash, David, Ezekiel, Foxx, James, Michael, Miles, Phillip, Rhys Pronunciation 🔊 Listen Finnigan Similar Names Finnian Adrion Korvin Kelwyn Fionnbarr Kesar Mellan Gillean Maxilla Lucioúcio Year by Year Popularity of Finnigan