Sylvia O'Brien is a Dublin-born soprano who has sung leading roles with English Touring Opera, including the Governess in Benjamin Britten's The Turn of the Screw, Gabiella (Countess Zedlau) in Strauss' Vienna Spirit and Costanze in Mozart's Die Entführung aus dem Serail. She has also sung as a soloist with the Irish Chamber Orchestra (Bach's St. John Passion, 2008) and the RTÉ National Symphony Orchestra (Morton Feldman's, Neither, at the RTÉ Living Music Festival 2006).
Sylvia O'Brien was a choral scholar at Trinity College Dublin and sang in the choirs of both the Anglican Christ Church Cathedral and the Roman Catholic St. Theresa's Church in Dublin, before making her operatic debut in 2004 as the Governess in The Turn of the Screw with Opera Theatre Company, Ireland's national touring company. She studied for a master's degree in contemporary vocal techniques at the Dundalk Institute of Technology. She has sung with several of Ireland's leading contemporary music groups including the Syrius Trio, with whom she toured Ireland in 2006 singing Seven Romances on Verses by Alexander Blok in an all Shostakovich programme, followed by a performance in the Weill Recital Hall at Carnegie Hall.