Badia di San Salvatore, Benedictine abbey in Vaiano, Italy.

Badia di San Salvatore is a stone church with three naves separated by rectangular pillars and covered by wooden roof trusses. The interior space is divided into a wider central section and narrower side sections, creating a traditional basilica layout found in medieval churches of the region.

The church has Lombard origins and was founded in the 9th or 10th century by Benedictine monks from Monte Cassino. The monastery developed into a powerful institution that shaped regional life for several centuries.

The abbey church was elevated to a parish church (Propositura) by decree of Bishop Gabriele Vettori on 25 February 1924. Since 1992 the former monastic rooms house a small museum of sacred art, named after Agnolo Firenzuola, who was abbot here for a short time; its displays trace the life that grew around the monastery in the Bisenzio valley.

The abbey stands at Via Monsignor G. Gori 10 in Vaiano, with the church and the former monastery set side by side. The sacred art museum occupies rooms of the old convent, including the chapter hall, the treasurer's room, the refectory and the abbot's residence. The bell tower rises 40 metres behind the church.

The 40-metre bell tower was built around 1260 and is a notable example of Prato Romanesque. Its overhanging crenellated top, covered in wood and fitted with defensive machicolations, dates to the late 14th century.