Places beginning with OS in Japan (general), Japan
Ōsa-chō
Osada-mura
Osaka-machi
Ōsaka-shi
Osaki-mura
Ōsaki-mura
Osa-mura
Osarizawa-machi
Ōsato-chō
Ōsato-mura
Ōsawa-mura
Ōsawano-machi
Ōsawano-machi
Oshamambe-chō
Oshidomari-mura
Oshika-chō
Oshika-mura
Ōshima-gun
Ōshima-gun
Ōshima-machi
Ōshima-mura
Ōshima-mura
Ōshima-mura
Ōshima-mura
Ōshima-mura
Oshima-shichō
Ōshima-shichō
Oshino-mura
Oshino-mura
Ōshio-mura
Osowa-mura
Ōsuka-chō
Ōsumi