1 Overseas Chinese 8 Obama Shinkin 32 Obihiro Shinkin 1 Obihiro Taisho Nokyo 8 Obihiro-shi Kawanishi Nokyo 31 Ochiimabari Nokyo 4 Odawara Daiichi Shinkumi 3 Oegun Nokyo 19 Ofunato-shi Nokyo 146 Ogaki Kyoritsu 31 Ogaki Shinkin 1 Ogatamura Nokyo 4 Ohotsuku Abashiri Nokyo 5 Ohotsuku Hamanasu Nokyo 44 Oigawa Nokyo 2 Oirase Nokyo 103 Oita 36 Oita Mirai Shinkin 1 Oita Oyamamachi Nokyo 29 Oita Shinkin 14 Oita-ken Gyokyo 73 Oita-ken Nokyo 42 Oita-ken Shinkumi 1 Oita-ken Shinren 11 Okawa Shinkin 18 Okayama Higashi Nokyo 36 Okayama Nishi Nokyo 40 Okayama Shinkin 2 Okayama Shogin Shinkumi 40 Okayama-shi Nokyo 96 Okazaki Shinkin 3 Oki Nokyo 4 Okidozen Nokyo 64 Okinawa 52 Okinawa Kaiho 109 Okinawa-ken Nokyo 11 Okinawa-ken Rokin 1 Okinawa-ken Shingyoren
1 Okotsupe-cho Nokyo 35 Ome Shinkin 13 Omifuji Nokyo 1 Omonogawa Nokyo 1 Omu Nokyo 14 Omuta Yanagawa Shinkin 15 Onga Shinkin 23 Onomichi-shi Nokyo 23 Oratatebayashi Nokyo 2 Orix Shintaku 3 Ororon Nokyo 3 Osaka Chochiku Shinkumi 40 Osaka Higashi Shinkin 15 Osaka Hokubu Nokyo 18 Osaka Kosei Shinkin 12 Osaka Kyoei Shinkumi 30 Osaka Minami Nokyo 34 Osaka Nakakawachi Nokyo 30 Osaka Senshu Nokyo 73 Osaka Shinkin 16 Osaka Shoko Shinkin 6 Osaka Tobu Nokyo 2 Osaka-fu Ishi Shinkumi 2 Osaka-fu Keisatsu Shinkumi 2 Osaka-fu Shinren 15 Osaka-shi Nokyo 57 Osaka-shi Shinkin 14 Oshima Shinkin 2 Osuzu Nokyo 11 Ota-shi Nokyo 15 Otaru Shinkin 9 Otawara Shinkin 1 Otofuke-cho Nokyo 1 Otsu Nokyo 24 Owari Chuo Nokyo 16 Oyama Nokyo 11 Ozora Nokyo