Eskiköseler is a neighborhood in Polatlı District, in Ankara Province, Türkiye. Eskiköseler lies at 936 m above sea level. It has 358 inhabitants. The nearest city is Polatlı, 17.4 km to the west. Among the landmarks around are Gordion (32 km) and Gordion Museum (31 km). Among the natural features are Gavur Castle (19.5 km).