Ratac or Ratac Abbey (Italian: Santa Maria de Rotezo, Serbian: Манастир Богородице Ратачке) was a fortified monastic complex on the coast of the peninsula between Bar and Sutomore in modern-day Montenegro. Ratac Abbey was under jurisdiction of the Roman Catholic Archdiocese of Bar, though relations between Ratac abbots and Bar archbishops were not always good. The earliest source that mentions Ratas is from 1247, though it probably existed much earlier.On 15 March 1306 Stephen Uroš II Milutin of Serbia issued a charter to Ratac in which he appointed his son Stephen as his future successor.