Regions of Japan
- Kamiotome
- Ōtomari Hana
- Ōtomarimachi
- Ōtomari
- Ōtō Machi
- Otokoyama
- Otoko-yama
- Ōtokoro Gawa
- Oto-jima
- Otohara
- Otohama
- Ō Tōge
- Ō Tōge
- Ōtoga-yama
- Ōtō-gawa
- Otofuri Iwa
- Ōbi Shima
- Otobe
- Ōtera
- Ōtemae
- Ohtemachi
- Ōtemachi
- Ōte-kawa
- Ōtawa-wan
- Saikaichō-ōtawagō
- Ōtachiba Jima
- Ōta-shi
- Ōta-saki
- Ōta-saki
- Otari Mura
- Ōtao
- Ōtani-yama
- Ōtani Yama
- Otani-yama
- Captain Shoal
- Ōtani Gawa
- Ōtani Gawa
- Ōtanimachi
- Ōtani
- Ōtani
- Ōtani
- Ohtani
- Ōtani
- Ōtani
- Ōtani
- Ōtani
- Ōtani
- Ōdana
- Ōta-mura
- Ōta-mura
- Ōta-mura
- Ōtama Yama
- Ōta-machi
- Ōno Shima
- Ōta-ku
- Ōtaki Mura
- Ko Gawa
- Otaki-gawa
- Ōtaki
- Ōtake Zaki
- Ōtake-shi
- Ōtake
- O-take
- O Dake
- Ō Dake
- Ufu Taki
- Ō Take
- Otai Ne
- Ōtaguchi
- Otagiri-mura
- Ōta-gawa
- Ōta-gawa
- Ōta-gawa
- Otachi-dake
- Ōtabu Shima
- Ōta
- Ōta
- Ota
- Ōta
- Ōta
- Yunotsuchō-ōta
- Ōta
- Ōta
- Ōta
- Ōta
- Ōta
- Ōtamachi
- Osuzu-yama
- Osuzu Yama
- Ōsumi Yama
- Ōsumi-shotō
- Ōsumi Kaikyō
- Ōsumi Hantō
- Ōsumi Bana
- Ōsumi
- Ōsukachō
- Ōsuka-chō
- Ōsugi Zaki
- Ōsugidani Gawa
- Sugi
- Ōsudo
- Osowa-mura
- Ōsōri
- Osorakan Zan
- Sono Su
- Ō-sone
- Ō-sone
- Ōshittai
- Oshide
- Ōshio
- Ōshiochō
- Ōshio
- Ōshinozu
- Oshino-mura
- Oshino Mura
- Oshinobori Misaki
- Hiro-ōshingai
- Ō-shinden
- Oshime-hana
- Oshimawashi-saki
- Ōshima-ura
- Ōshima-ura
- Oshima-ura
- Ōshima Shichō
- Ōshima Seto
- Ōshima-seto
- Ōshima-saki
- Ōshima-mura
- Ōshima-mura
- Ōshima-mura
- Ōshima-mura
- Ōshima-mura
- Ōshima-machi
- Ōshima Kō
- Ōshima-kō
- ŌShima Kaikyō
- Ōshima-gun
- Ōshima-gun
- Ariakemachi-ōshimago
- Ōshima Gawa
- Ōshima
- Ōshima
- Oshima
- Ōshima
- Ōshima
- Gōnourachō-ōshima
- Ōshima
- Higashiōshimamachi
- Ōshima
- Kamikoshikichō-oshima
- Hakuzan Jima
- Ō Shima
- Ō Shima
- O-shima
- Ō Shima
- Ō-shima
- Ō-shima
- Ō Shima
- Ō Shima
- Ō Shima
- Ō Shima
- O Shima
- Ō Shima
- Ō Shima
- Ō Shima
- O Jima
- Ō-shima
- Ō Shima
- Ō Shima
- Ō Shima
- O Shima
- Ō-shima
- Ō Shima
- Ō Shima
- O Jima
- Ō Shima
- Ō-shima
- Ō Shima
- Azuchi Ōshima
- Kii Ōshima
- Ō Shima
- Ōshima
- Ō Shima
- Ō Shima
- Ō Shima
- Ō Shima
- Ō-shima
- Ō Shima
- Ō Shima
- Ō Shima
- O-shima
- O Shima
- Ō-shima
- Ō-shima
- Ou Jima
- Ō-shima
- Ō Jima
- Ō Jima
- Ōshimamura-maehira
- Oshikiri-shinden