Önder is a neighborhood in Siverek District, in Şanlıurfa Province, Türkiye. Önder lies at 589 m above sea level. It has 155 inhabitants. The nearest city is Hilvan, 14.7 km to the west. Among the landmarks around are Göbekli Tepe (49 km), Hacıhıdır Dam (11.0 km) and Tille Höyük (22 km).