Yizhou

Yi Prefecture or Yizhou may refer to:


 * Yizhou (Southwest China) (益州), a historical province of China covering Southwest China
 * Yi Prefecture (Shandong) (沂州), active between the 7th and 18th centuries
 * Yi Prefecture (Guangxi) (宜州), active between the 7th and 13th centuries
 * Yi Prefecture (Hebei)
 * Yi Prefecture (Korea), now known as Uiju or Uiju County
 * Yizhou District, Hechi (宜州区), district of Hechi, Guangxi named after the historical prefecture
 * Yizhou District, Hami (伊州区), district of Hami, Xinjiang
 * Yizhou (island) (夷洲), an island described in historical texts that is possibly Taiwan