Jean-Baptiste-Marie Vianney, T.O.S.F., commonly known in English as St John Vianney, was a French parish priest who is venerated in the Catholic Church as a saint and as the patron saint of all priests. He is often referred to as the "Curé d'Ars". He became internationally notable for his priestly and pastoral work in his parish because of the radical spiritual transformation of the community and its surroundings.