Kōshū

Kōshū or Koshu may refer to:


 * Kōshū (甲州)
 * Kōshū, another name for Kai Province.
 * Kōshū, Yamanashi, the present city in Yamanashi Prefecture.
 * Koshu (grape), a variety of Grape. / 甲州 (葡萄)
 * Kōshū (向州)
 * Kōshū, another name for Hyūga Province.
 * Kōshū (公州)
 * Gwangju, Republic of Korea, formerly known as Kōshū from 1910 to 1945
 * Kōshū (膠州)
 * Kōshū (survey ship), a ship of the Imperial Japanese Navy