Ō
- (Koshigaya Shi) Ōyoshi
- (Kitakatsushika Gun) Ōmiya
- (Kitakatsushika Gun) Ōkawado
- (Kitakatsushika Gun) Ōtoshimukō
- (Misato Shi) Ōhiroto
- (Yashio-shi) Ōsone
- (Ageo Shi) Ōya-hongō
- (Saitama-shi) Ōyaba
- (Saitama-shi) Ōkubo-ryōke
- (Saitama-shi) Ōto
- (Saitama-shi) Ōnojima
- (Saitama-shi) Ōguchi
- (Saitama-shi) Ōto
- (Saitama-shi) Ōmori
- (Saitama-shi) Ōshima
- (Saitama-shi) Ōhara
- (Kasukabe Shi) Ōnuma
- (Kawagoe-shi) Ōsenba
- (Fujimino Shi) Ōhara
- (Fujimino Shi) Ōi-chūō
- (Kawaguchi-shi) Ōtake
- (Kasukabe Shi) Ōbusuma