The Abbey of the Saviour (Italian: Abbadia San Salvatore) is an abbey in the town of Abbadia San Salvatore, Tuscany, Italy, which is named after the Abbey.
The traditional account of its origin indicates that the Lombard king Ratchis founded the abbey in AD 743, entrusting it to the Benedictines. Later handed over to the Cistercians, the abbey played an important regional role, being often in conflict with the houses of the Aldobrandeschi and the Orsini, as well as other allies of the Holy Roman Emperors.