Saint Sister is an Irish traditional duo, whose music has been described as "atmosfolk.

"[1][2][3] Morgan MacIntyre (from Belfast) and Gemma Doherty (from Derry) met at Trinity College, Dublin.

[5] Their debut album, Shape of Silence, was released in 2018 and was nominated for the Choice Music Prize.

They performed an a cappella rendition of the song "Dreams" by The Cranberries at Lyra McKee's funeral in Belfast,[6] who was killed by the New IRA in April 2019.

[7] In 2020, the duo were part of an Irish collective of female singers and musicians called Irish Women in Harmony, that recorded a version of the song "Dreams" in aid of the charity Safe Ireland, which deals with domestic abuse which had reportedly risen significantly during the Covid-19 lockdown.