The Cathedral of Saint-Jean-de-Maurienne is a historic Roman Catholic cathedral located in the town of Saint-Jean-de-Maurienne, in the Savoie region of France. It serves as the seat of the Bishop of Maurienne and is known for its beautiful architecture, which combines elements from different periods, including Romanesque and Gothic styles. Originally built in the 11th century, the cathedral has undergone several renovations and restorations over the years. Notable features include its impressive bell tower and intricate frescoes that adorn the interior, reflecting the rich religious heritage of the region.