Born in Fossa, Killarney, O’Connor studied at NCAD, Dublin and the Accademia di Belle Arti in Florence and the Istituto Statale D'Arte in Urbino, Italy on Irish and Italian government scholarships. She has exhibited extensively in Ireland at the RHA, EVA, Oireachtas and Iontas as well as arts festivals such as Beara and Smaointe na Sceilge and contemporary galleries such as the Lavit Gallery Cork, the Doswell Gallery, the Hunt Museum, Limerick and the Source Arts Centre, Thurles. Her work has also been exhibited and published in Italy. She was the founder and director of a contemporary commercial arts space in the Ballycasey House Gallery from 1984-1989. Since the 1990s O’Connor has collaborated regularly with Waterville poet Paddy Bushe and her work has also featured in many Dedalus Press publications. She now lives and works from her studio in Dovea, Co. Tipperary.