Noirin ni Riain has performed extensively worldwide. For the past six years she has been guest singer at Winter and Summer Solstice concerts at the Cathedral of St John Divine in New York and is featured soloist on a commercial recording of the events. She has sung in India, Poland, Copenhagen, and in 1995 she performed at the World Women Summit in Beijing and with Sinead O'Connor at the Barbican Centre in London. She has visited and sung in Bosnia, Croatia and Sarajevo.

Recordings include Caoineadh na Maighdine, recorded with the Benedictine monks of Glenstal Abbey, Good People All,Vox de Nube, Stor Amhran, Soundings. She has written two books: Stor Amhran and Im Bim Baboro.