Ichinomiya (; literally first shrine) is historically the supreme shrine in each of the old provinces of Japan, and currently the name of several places in Japan:

  • a city:
  • Ichinomiya, Aichi (Japanese: 一宮市; Ichinomiya-shi) containing the shrine of the old province Owari
  • Owari-Ichinomiya Station along the JR Central Tōkaidō Main Line
  • Meitetsu Ichinomiya Station along the adjacent Meitetsu Main Line
  • several towns (Japanese: 一宮町; Ichinomiya-cho or Ichinomiya-machi):
  • Ichinomiya, Chiba containing the shrine of the old province Kazusa
  • Kazusa-Ichinomiya Station, along the JR East Sotobō Line
  • Ichinomiya, Aichi (Mikawa) containing the shrine of the old province Mikawa
  • Mikawa-Ichinomiya Station, along the JR Central Iida Line
  • Ichinomiya, Hyōgo (Shisō) containing the shrine of the old province Harima
  • Ichinomiya, Hyōgo (Tsuna) containing the shrine of the old province Awaji
  • Ichinomiya, Kumamoto containing the shrine of the old province Higo
  • Ichinomiya, Yamanashi containing the shrine of the old province Kai
  • Ichinomiya Castle in Tosa Province, today's Kōchi Prefecture.