Ō
- (Aomori Shi) Ōyasawa
- (Nishitsugaru-gun) Ōrinji
- (Nishitsugaru-gun) Ōma
- (Nishitsugaru-gun) Ōhama
- (Towada Shi) Ōwada
- (Aomori Shi) Ōhama
- (Hirakawa Shi) Ōbokutaira
- (Towada Shi) Ōfudō
- (Towada Shi) Ōta
- (Towada Shi) Ōtakawara
- (Towada Shi) Ōhatano
- (Sannohe Gun) Ōkubo
- (Sannohe Gun) Ōhira
- (Sannohe Gun) Ōta
- (Sannohe Gun) Ōyachi
- (Sannohe Gun) Ōginosawa
- (Sannohe Gun) Ōhata
- (Sannohe Gun) Ōyabu
- (Sannohe Gun) Ōkakedai