O (Sannohe Gun) Ochita (Sannohe Gun) Okinaka (Sannohe Gun) Okitaomote (Sannohe Gun) Otozaka (Hachinohe Shi) Odaira Ō (Sannohe Gun) Ōsawa (Sannohe Gun) Ōishi (Sannohe Gun) Ōshita (Sannohe Gun) Ōbasawa (Hachinohe Shi) Ōwatari (Hachinohe Shi) Ōmori (Hachinohe Shi) Ōtai (Hachinohe Shi) Ōwarabi (Hachinohe Shi) Ōkubo (Hachinohe Shi) Ōbiraki (Shimokita-gun) Ōma (Minamitsugaru Gun) Ōwani 4 5 6