The Shagan (Kazakh: Шаған, romanized: Şağan [ʃɑˈʁɑn]; Russian: Шаган, IPA: [ʂɐˈgan]) is a river in the West Kazakhstan Region, Kazakhstan, and in Orenburg Oblast, Russia.
It is a tributary of the Ural. The river is 264 kilometres (164 mi) long, and has a drainage basin of 7,530 square kilometres (2,910 sq mi).