The Church of Saint Susanna at the Baths of Diocletian (Italian: Chiesa di Santa Susanna alle Terme di Diocleziano) is a Roman Catholic parish church located on the Quirinal Hill in Rome, Italy. There has been a Titular church associated to its site as far back as A.D. 280. The current church was rebuilt from 1585 to 1603 for a monastery of Cistercian nuns founded on the site in 1587 which still exists there.