Sarzana Cathedral (Italian: Concattedrale di Santa Maria Assunta di Sarzana) in Sarzana, Liguria, Italy, is a co-cathedral of the Diocese of La Spezia-Sarzana-Brugnato. It is dedicated to the Assumption of the Virgin Mary. The building is a mixture of the Romanesque and Gothic styles, reflecting the length of the period of its construction, from the early 13th to the late 15th century.