The Church of San Leonardo, Italian: Chiesa di San Leonardo, is a cave church in the rione of Sasso Caveoso of Matera, in Basilicata in southern Italy. It takes its name from a fresco of San Leonardo. The church is deconsecrated, and was until recently used as a bakery. The date of foundation of the church is unknown; it was first documented in 1543–44, when it was without a door and repairs were ordered.