Meaning Borne in Irish Mythology by the daughter of the god and sea, the name means 'radiance', 'shine' and 'beauty'. Origin of Niamh Celtic , Irish Popular Middle Names Ann Pronunciation 🔊 Listen Niamh neev Similar Names Haeatatanga Nerea Dorrian Dorelia Dorienne Dorisa Dorri Charlotte Ngaio Dorea Year by Year Popularity of Niamh