Destacados a b c d e f g h i j k l m n o p q r s t u v w x y z Orde alfabética O Ōwarabioka Oisemachi Ōnakajima Oshikiri-shinden Ōishida Ōashizawa Ōhori Ōnida Ōsawa Ōtaki Ōkubo Ōtorii Ōsumi Ōya Ogunimachi Ōishizawa Obanazawa Oishi Ōami Ōiwagawa Onabe Ōtori Ōyama Ōmori Ōsawa