The Abara River, also known as Abara Khawr, is a stream in Jonglei, South Sudan. It is a tributary of the Agwei River, which is formed at the confluence of the Abara and the Kongkong River just east of Bongak. The stream is a wadi, or ravine, that may run dry during the dry season but quickly becomes a watercourse due to heavy rainfall during the wet season.