Sōshū

Sōshū or Soshu may refer to:


 * Sōshū (相州)
 * Sagami Province (相模国)
 * Sōshū (総州)
 * Fusa Province (総国)
 * Kazusa Province (上総国)
 * Shimōsa Province (下総国)
 * Kazusa and Shimōsa are also called Ryōsō (両総) or Nisō (二総).