Shagan may refer to:
Shagan (Irtysh), a river in Kazakhstan Shagan (Ural), a river in Kazakhstan and Russia Shagan (lake, Abai Region), an artificial lake in Kazakhstan Chagan (lake, Kulunda Steppe), a lake in Kazakhstan and Russia Şağan (or Shagan), a settlement and municipality in Baku, Azerbaijan Sary Shagan, an anti-ballistic missile testing range in Kazakhstan
People with the surname Ethan H. Shagan (born 1971), American historian of early modern Britain Steve Shagan (1927–2015), American novelist, screenwriter, and television and film producer
See also Chagan (disambiguation)