Terme di San Cristiano, Roman thermae in Triggio district, Benevento, Italy

Terme di San Cristiano is a Roman bath complex located on the west side of Via San Cristiano in Benevento's Triggio district, featuring multiple vaulted rooms as its main structure. Additional ruins have been found within the Casa Campi property, extending the known footprint of this ancient site.

The vaulted rooms date to the first half of the 2nd century, when brickwork matches that of the nearby Roman theatre. Almerico Meomartini first identified them as baths at the end of the 19th century, linking them to the same road axis as Via San Filippo, part of the urban Via Appia. Two inscriptions mention Commodian Baths, but the identification remains uncertain.

The name "Terme di San Cristiano" is an informal label tied to the nearby church of San Cristiano, not an ancient Roman name. The vaulted rooms are now used as storage in a courtyard off Via Torre della Catena, and the Casa Campi area was reused in the Lombard period for a burial ground.

Two of the three vaulted rooms, one above the other, are reached through a courtyard off Via Torre della Catena and are used as storage. The third, partly collapsed, stands in a house courtyard on Via San Cristiano. The Casa Campi ruins east of the street were excavated in the 2000s and the results remain unpublished.

The Casa Campi area was used in the Lombard period for a burial ground, as the source states; the 2000s excavations there remain unpublished. The three vaulted rooms west of Via San Cristiano were first recorded by Alfonso De Blasio in the 17th century and later by Almerico Meomartini, who noted remains extending beyond the Lombard wall circuit.