Caitríona O'Leary, born in 1969 in Ireland, is a singer, composer, and arranger. Her career involved performances of traditional Irish music, early music, folk music, and contemporary music. She has released albums with various ensembles, including I Am Stretched on Your Grave (2000) and Irish Songs of Love and Nature (2000). O'Leary's breakthrough came with The Wexford Carols in 2014, which featured guest singers Tom Jones, Rosanne Cash, and Rhiannon Giddens. The album reached Number 1 on the Billboard and Amazon charts. Her follow-up album, Strange Wonders, was released in 2021. During the COVID pandemic, O'Leary also collaborated with director Eric Fraad on filmic projects such as Love’s Fever and Island of Saints.