Majella Cullagh was born in Cork, Ireland and studied there with Maeve Coughlan. She continued her studies in London with Gerald Martin Moore and later graduated from the prestigious National Opera Studio.
Her distinguished international career includes performances at Dallas Opera, Opera New Zealand, the Royal Swedish Opera, Opera di Verona, Opera St Gallen and Vlaamse Opera. Cullagh performs extensively in oratorio and on the concert platform, she has given recitals in London, La Coruna, Pesaro and Catania.
She has recorded over 30 titles on the Opera Rara, Chandos and Naxos labels, and is a bel canto specialist.