Niamh

In Irish mythology, Niamh is the daughter of Manannán mac Lir. She is one of the Queens of Tir na nÓg, and might also be the daughter of Fand.
Niamh crossed the Western Sea on a magical horse, Embarr, and asked Fionn mac Cumhaill if his son Oisín would come with her to Tír na nÓg (the Land of Youth). Oisín agreed and went with her, promising his father he would return to visit soon.
Oisín was a member of the Fianna and, though he fell in love with Niamh during their time together in Tír na nÓg, he became homesick after what he thought was three years. Niamh let him borrow Embarr, who could run above ground, and made him promise not to get off the horse or touch Irish soil.
The three years he spent in Tír na nÓg turned out to be 300 Irish years. When Oisín returned to Ireland, he asked where he could find Fionn mac Cumhail and the Fianna, only to find that they had been dead for hundreds of years and were now only remembered as legends. Whilst travelling through Ireland, Oisín was asked by some men to help them move a standing stone. He reached down to help them, but fell off his horse. Upon touching the ground he instantly became an old man. He is then said to have dictated his story to Saint Patrick, who cared for and nursed him until he died. Meanwhile, Niamh had given birth to his daughter, Plor na mBan. Niamh returned to Ireland to search for him, but he had died.
The LÉ Niamh (P52), a ship in the Irish Naval Service, is named after her.

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Radiance, brightness.

Niav, Niamhe

Popularity	Name	Birth Year	Description
1	Niamh Cusack	1959	Irish actress
2	Niamh Walsh
3	Niamh McGrady	2000	Irish actress
4	Niamh Wilson	1997	Canadian actress
5	Niamh Kavanagh	1968	Irish singer
6	Niamh		Female figure in Irish mythology
7	Niamh Perry	1990	Irish singer
8	Niamh Fahey	1987	Association footballer
9	Niamh Briggs	1984	Irish rugby union player
10	Niamh Parsons		Irish singer
11	Niamh Bhreathnach	1945	Irish remedial teacher and politician
12	Niamh Smyth	1972
13	Niamh Uí Bhriain	1970	Irish activist
14	Niamh Cosgrave	1964	Irish politician
15	Niamh Redmond		Miss Ireland 1996
16	Niamh Ní Charra		Irish singer
17	Niamh Coyle		Camogie player
18	Niamh Rippin	1994	British artistic gymnast
19	Niamh Kilkenny	1989	Camogie player
20	Niamh Mulcahy	1990	Camogie player
21	Niamh McCarthy	1994	Irish paralympic discus thrower
22	Niamh O’Connor		Irish writer and journalist
23	Niamh Reid Burke	1991	Irish association football player
24	Niamh McDonald
25	Niamh McGrath	1993	Camogie player
26	Niamh Charles
27	Niamh Kindlon