The Whitefriar Street Carmelite Church is a Roman Catholic church in Dublin, Ireland maintained by the Carmelite order. The church is noted for having the relics of Saint Valentine, which were donated to the church in the 19th century by Pope Gregory XVI from their previous location in the cemetery of St. Hippolytus in Rome. The church is on the site of a pre-Reformation Carmelite priory built in 1539.