The Sājūr River (Arabic: نهر الساجور‎ [næhr æs sæːˈd͡ʒuːr]) is a 108 kilometres (67 mi) long river originating in Turkey and flowing into the Euphrates in Syria. It is the smallest of the three rivers joining the Euphrates in Syria, and the only one that joins the Euphrates on its right bank. Occupation in the Sājūr basin started in the Lower Palaeolithic period and continues until today.