Šas (Albanian: Shas, Latin: Suacium and Old Church Slavonic: Свач (Svač) is a village in Montenegro. According to the 2003 census, the village had a population of 268 people. It is located east of Ulcinj. In the vicinity of the village is its eponymous lake, Lake Šas. Vladimir Hill, near Šas, has an unknown fortification with a church, and is believed to be the location of Oblik, a significant fortification mentioned in the Chronicle of the Priest of Duklja.