Quick answer
Niamh is a girl name meaning "bright".
Pronunciation: Irish /ˈnʲiəw/; Irish /ˈnʲiəvˠ/; Irish /ˈnʲiːvˠ/.
Meaning and history
The name means "bright" in Irish. She was the daughter of the sea god Manannán mac Lir in Irish legends. She fell in love with the poet Oisín, the son of Fionn mac Cumhaill. It has been used as a given name for people only since the early 20th century.
Notes and context
Usage: irish, irish mythology