The Oratory of San Bernardino is a small Roman Catholic prayer hall or independently standing chapel, located on via Vallerozzi in Siena, region of Tuscany, Italy.
The oratory has frescoes from various 16th- and 17th-century Sienese painters. It is dedicated to the 13th-century preacher San Bernardino da Siena. The oratory is almost adjacent to the Basilica of San Francesco, Siena.