Evangelical-Lutheran Church in Württemberg
Since the Reformation Sulz has been protestant. The Lutheran parish of Sulz has seven parishes, and the districts of Fischingen and Glatt also have their own Lutheran parish. All together belong to the evangelic deanery of Sulz. The town is also the seat of the Sulz church district of the Evangelical-Lutheran Church in Württemberg. The office of the school dean responsible for the Protestant church district Sulz a. N. is located in Freudenstadt. The Berneuchen Movement within the Protestant Church has its centre in the former Kirchberg convent.