San Rocco is a deconsecrated Baroque-style, former-Roman Catholic church located on the Piazza of the same name in central Viterbo, region of Lazio, Italy.
The history of this church and the confraternity is not well recorded in published sources: Both Feliciano Busi in 1742 and Gaetano Coretini in 1749 mention, in almost identical paragraph, that this as one of the churches owned by lay confraternities, this one distinguished by the green cloak who ambled through the town and surrounding territory with litters seeking to collect the infirm poor and lead them to the Ospedale Grande, if not tending to their burial.
It is not clear if this confraternity was the same as tended the distinct church of San Rocco is located on Viale Fiume #35, in the frazione of Bagnaia, built in 1569, and rebuilt in the 17th-century.
In 1934 the commune of Bagnaia transformed the church in to a Sacrario dei Caduti (Chapel for the Fallen).
Judging from the original inventories of the interior of the church, much of the decoration derives from the 17th century, although now dispersed, with some in the Civic Museum of Viterbo.