Treasury of St Mark's Basilica

The Treasury of St Mark's Basilica contains the church treasure or collection of sacred objects and reliquaries kept in St Mark's Basilica in Venice, Italy. The treasure constitutes the single best collection of Byzantine metalwork and enamels that survives, many of the items having been looted during the Fourth Crusade of 1204. The treasury also contains some significant artworks made for the basilica itself, but no longer used there.

Under the Venetian Republic when St Mark's was the chapel of the doge, it was entrusted to the procurators of Saint Mark who were responsible for the administration and finances of the basilica. Distinguished foreign visitors were allowed to tour the collection, which was also publicly displayed five times a year. Today a large selection of those objects which have survived can be seen by visitors, though much has been lost, in particular during the French occupation of Venice under Napoleon .