The Catacomb of Sant' Ermete or Catacomb of Bassilla is a catacomb on the former via Salaria in Rome, now sited in the Pinciano district on via Berolini. It originated some time between 200 and 250.
It was one of the first catacombs to be rediscovered, when in 1576 the Jesuits were building a college for their students on its site. Antonio Bosio explored and studied it in December 1608. Recent excavations have uncovered a semi-underground basilica with Hermes, Protus and Hyacinth's original grave sites and a medieval oratory, the latter of which suggests a monastery at the site, though this is unmentioned in the written sources.
