Oshima subprefecture (渡島) is located in Hokkaido, Japan.

Cities

Districts

  • Kameda
    • Kamedagun
    • Ono
    • Nanae
    • Toi
    • Esan
    • Todohokke
  • Kayabe
    • Kayabegun
    • Minamikayabe
    • Shikabe
    • Sawara
    • Mori
  • Yamakoshi
    • Yamakoshigun
    • Yakumo
    • Oshamanbe
  • Matsumae
    • Matsumae
    • Fukushima
  • Kamiiso
    • Kamiisogun
    • Shiriuchi
    • Kikonai
    • Kamiiso