The Catedral of Saint Mary of Tortosa is a cathedral located in Tortosa, Catalonia, Spain and seat of the Diocese of Tortosa. The present structure is located in the center of the city's old town.

Its construction began in 1347 on the remains of a previous Romanesque cathedral. The cathedral was completed two centuries later. It was designed by Benito Dalguayre and has three naves with chapels between the buttresses and an ambulatory with radial chapels.^[1] The church is constructed in the Catalan Gothic style, though the façade, from the 18th century, is Baroque.

Archeological excavations on the site revealed that the cathedral was constructed on the site of an older Romanesque church, which was itself built on the site of the old Roman forum of Tortosa.

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  Cathedral plan
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  The cathedral's Baroque façade
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  Nave, looking toward the altar
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  Apse and ambulatory
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  The cathedral was surrounded by buildings until 2015
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  The cathedral in 2022
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  Cathedral cloister
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  Baroque entryway to the cloister
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  Window in the cloister
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  13th century plaque inside the cathedral

The Cathedral was the location of the famous Disputations of Tortosa, where Jews were forced to defend their faith or convert. After two weeks of arguments, a Papal Bull was issued by the Antipope Benedict XIII that forbade the learning from the Talmud or any other Jewish book that attacked Christianity.

• Web de l'ajuntament de Tortosa sobre la Catedral. (in Catalan)
• Plana del Bisbat de Tortosa (in Catalan)
• Canònica de Tortosa.
• Descripció i fotografies (in Catalan)