O (Itoshima-shi) Oginoura (Chikugo Shi) Oriji Ō (Itoshima-shi) Ōmaru (Itoshima-shi) Ōkado (Ōkawa-shi) Ōnoshima (Ōkawa-shi) Ōhashi (Mizuma-gun) Ōyabu (Mizuma-gun) Ōsumi (Yanagawa Shi) Ōhamamachi (Kurume Shi) Ōishimachi (Yanagawa Shi) Ōsawa 4 5 6