Celtic Woman is an all-female Irish musical ensemble conceived and created by Sharon Browne and David Downes, a former musical director of the Irish stage show Riverdance. In 2004, he recruited five Irish female musicians who had not previously performed together: vocalists Chloë Agnew, Órla Fallon, Lisa Kelly and Méav Ní Mhaolchatha, and fiddler Máiréad Nesbitt, and shaped them into the first line-up of the group that he named Celtic Woman. Downes chose a repertoire that ranged from traditional Celtic tunes to modern songs.

The group's line-up has changed over the years; in 2009, the group consisted of Chloë Agnew, Lynn Hilary, Lisa Kelly, Alex Sharpe and fiddler Máiréad Nesbitt; Alex Sharpe left the group in May 2010. Eight albums have been released under the name "Celtic Woman": Celtic Woman, Celtic Woman: A Christmas Celebration, Celtic Woman: A New Journey, Celtic Woman: The Greatest Journey, Celtic Woman: Songs from the Heart, Celtic Woman: Lullaby, Celtic Woman: Believe and Celtic Woman: Home for Christmas. The group has undertaken a number of world tours. Cumulatively, albums by Celtic Woman have sold over 6 million records worldwide.