Ōshima
- Amami Ōshima
- Amami Ōshima language
- Izu Ōshima
- Japanese gunboat Ōshima
- Kii Ōshima
- Nii Ōshima
- Oshima (Hokkaido)
- Oshima Brothers
- Oshima Peninsula
- Oshima Province
- Oshima Subprefecture
- Osimo
- Ōshima (Aomori)
- Ōshima (Ehime)
- Ōshima (surname)
- Ōshima District, Kagoshima
- Ōshima District, Yamaguchi
- Ōshima Subprefecture (Kagoshima)
- Ōshima Subprefecture (Tokyo)
- Ōshima Subprefecture (disambiguation)
- Ōshima stable
- Ōshima, Fukuoka
- Ōshima, Nagasaki (Kitamatsuura)
- Ōshima, Nagasaki (Nishisonogi)
- Ōshima, Niigata
- Ōshima, Toyama
- Ōshima, Yamaguchi