The Museo del Tesoro di San Gennaro is a museum of religious relics in Naples, in Campania in southern Italy.

It was opened in December 2003.^{[citation needed]}

The collection includes a large numbers of ex votos as well as silver and gold objects, paintings, bronze busts and an eighteenth-century gilded litter which was formerly used to carry the effigy of the saint in processions.^{[1]: 27 [2]: 491}