The Abbey of Sant'Antimo, Italian: Abbazia di Sant'Antimo, is a former Benedictine monastery in the comune of Montalcino, Tuscany, central Italy. It is approximately 10 km from Montalcino about 9 km from the Via Francigena, the pilgrim route to Rome. Disused for many years, the abbey has since 1992 been in use by a small community of Premonstratensian Canons Regular. A tributary of the river Orcia, the Starcia, runs near the abbey.
Located in a Tuscan valley not far from Siena, the spectacularly beautiful Sant'Antimo Abbey is a must-see for anyone visiting the area. Originally built in Carolingian times, the present abbey church is an elegant Romanesque edifice of the early 12th century. Gregorian chant can be heard from inside throughout the day.