Niamh f
Irish Gaelic: name meaning ‘brightness, beauty’. It was borne in Irish mythology by the daughter of the sea god, who fell in love with the youthful Oisín, son of Finn MacCool, and carried him off over the sea to the land of perpetual youth, Tír na nÓg. It is now a very popular given name in Ireland.
First names dictionary. 2012.