Japón

O

• (Koshigaya Shi) Onma
• (Koshigaya Shi) Onma-shinden
• (Noda-shi) Osaki
• (Noda-shi) Osakidai
• (Nagareyama-shi) Omoi

Ō

• (Koshigaya Shi) Ōdomari
• (Koshigaya Shi) Ōmatsu
• (Koshigaya Shi) Ōsugi
• (Koshigaya Shi) Ōyoshi
• (Koshigaya Shi) Ōbayashi
• (Koshigaya Shi) Ōfusa
• (Kitakatsushika Gun) Ōkawado
• (Koshigaya Shi) Ōzato
• (Koshigaya Shi) Ōmichi
• (Kitakatsushika Gun) Ōtoshimukō
• (Misato Shi) Ōhiroto
• (Yashio-shi) Ōze
• (Yashio-shi) Ōsone
• (Kawasaki-shi) Ōzenji-nishi
• (Ichikawa Shi) Ōnomachi
• (Ichikawa Shi) Ōmachi
• (Noda-shi) Ōdonoi
• (Noda-shi) Ōwada
• (Kashiwa Shi) Ōaota
• (Kashiwa Shi) Ōmuro
• (Kashiwa Shi) Ōtsukachō
• (Nagareyama-shi) Ōguro
• (Matsudo Shi) Ōyaguchi
• (Matsudo Shi) Ōganedaira
• (Matsudo Shi) Ōhashi