Ō
- (Hirosaki Shi) Ōsuke
- (Hirosaki Shi) Ōkubo
- (Minamitsugaru Gun) Ōhira
- (Kitatsugaru Gun) Ōsawanai
- (Tsugaru Shi) Ōtappi
- (Shimokita-gun) Ōmataira
- (Shimokita-gun) Ōkawame
- (Shimokita-gun) Ōsai
- (Kitatsugaru Gun) Ōyama-nagane
- (Goshogawara Shi) Ōta
- (Goshogawara Shi) Ōtayama
- (Nishitsugaru-gun) Ōgita
- (Nishitsugaru-gun) Ōdōji
- (Nishitsugaru-gun) Ōjikari
- (Nishitsugaru-gun) Ōwada
O
- (Nakatsugaru Gun) Oppu
- (Hirosaki Shi) Okushinhōshi
- (Minamitsugaru Gun) Omotemachi
- (Minamitsugaru Gun) Origami
- (Kitatsugaru Gun) Obetsu
- (Kitatsugaru Gun) Okihara
- (Tsugaru Shi) Okizentsu
- (Goshogawara Shi) Okiiizume
- (Tsugaru Shi) Odawara
- (Higashitsugaru-gun) Okutairahe
- (Higashitsugaru-gun) Obi Jima
- (Shimokita-gun) Orito
- (Shimokita-gun) Oinochō
- (Kitatsugaru Gun) Orito
- (Nishitsugaru-gun) Onifukuromachi