Başayaş is a neighborhood in Ayaş District, in Ankara Province, Türkiye. Başayaş lies at 1,112 m above sea level, in the Balaban Dağları mountains. It has 264 inhabitants. The nearest city is Fevzi Çakmak, 11.9 km to the east. Among the landmarks around are Hacı Bayram Mosque (42 km), Museum of Anatolian Civilizations (43 km) and Asartepe Dam (12.7 km).