This page lists Japan-related articles with romanized titles beginning with the letter O. For names of people, please list by surname (i.e., "Tarō Yamada" should be listed under "Y", not "T"). Please also ignore particles (e.g. "a", "an", "the") when listing articles (i.e., "A City with No People" should be listed under "City").
Oa Oasa, Hiroshima
Ob Sakae Ōba Ōbaku (school of Buddhism) Obama, Fukui Obanazawa, Yamagata Obara, Aichi Obata, Mie Obatake, Yamaguchi Obi (sash) Obihiro, Hokkaidō Obu, Aichi Keizo Obuchi
Oc Occupied Japan Ochanomizu Station Ochazuke Ochi District, Ehime Ōchi District, Shimane Ochi, Kōchi Ochi, Shimane Ochiai, Okayama
Od Oda Chikazane Oda clan Oda District, Okayama Eiichiro Oda Oda Nagamasu Oda Nobuhide Oda Nobunaga Oda Nobuyuki Oda Sakunosuke Oda, Ehime Ōda, Shimane Joe Odagiri Odai, Mie Odaiba Odakyu Electric Railway Odakyu Odawara Line Ōdate, Akita Odawara, Kanagawa
Oe Oe District, Tokushima Kenzaburō Ōe Ōe no Hiromoto Oe, Kyoto
Of Ōfunato, Iwate
Og Oga, Akita Oga Yashiro Ōgaki, Gifu Ogaki, Hiroshima Ogasa District, Shizuoka Ogasa, Shizuoka Ogasawara Islands Ken Ogata Ogata Kenzan Ogata Kōrin Ogata, Kōchi Ogata, Ōita Ogawa, Kumamoto Marumi Ogawa Ogi District, Saga Ogi, Ōita Ogi, Saga Ogimi, Okinawa Ogori, Fukuoka Ogori, Yamaguchi Oguchi, Aichi Oguni, Kumamoto Oguri Mushitaro
Oh Oh My Goddess! Ohara District, Shimane Ohara, Okayama Ōharu, Aichi Ohashi Kannon-ji Masayoshi Ohira Naoto Ohshima Ohito, Shizuoka Ohka Hideo Ohkubo
Oi Oigawa, Shizuoka Ōita District, Ōita Ōita Prefecture Ōita, Ōita
Oj Ōji, Nara Ojigi Ojiya, Niigata
Ok Kiyoshi Oka Okabe, Shizuoka Okachimachi Station Keisuke Okada Okadama Airport Okagaki, Fukuoka Okakura Kakuzo Okamoto Kanoko Okamoto Kido Okawa, Fukuoka Ōkawa, Kōchi Okawachi, Hyōgo Okaya Okayama Prefecture Okayama, Okayama Okazaki, Aichi Okazaki Castle Okazaki fragment Ritsuko Okazaki Okegawa, Saitama Oki District, Shimane Oki Province Oki, Fukuoka Okimi, Hiroshima Okinawa diet Okinawa Prefecture Okinawan weapons Okinawa, Okinawa Okinawan language Okita Sōji Okonomiyaki Oku District, Okayama Oku, Okayama Ōkubo-ji Ōkubo Toshimichi Ōkuchi, Kagoshima Okuchichibu Mountains Okudaira Sadamasa Ōkuma Shigenobu Okutsu, Okayama
Ol The Old Capital Olympus Corporation Olympus C-770 Movie Olympus C-8080 Wide Zoom
Om Ōmachi, Nagano Ōmachi, Saga Omaezaki, Shizuoka Ōmagari, Akita Ōme, Tokyo Omogo, Ehime Ōmi Province Ōmihachiman, Shiga Ōmishima, Ehime Ōmishima Island, Ehime Ōmisoka Omiya, Mie Ōmiya-ku, Saitama Omoikane (Shinto) Ōmura, Nagasaki Ōmura Masujirō Omuta, Fukuoka
On On Kawara Ondo (music) Ondo, Hiroshima One Piece One Year War Onejime, Kagoshima Onga District, Fukuoka Onga, Fukuoka Oni (folklore) Onigawara Onigiri Onigokko Oniisama e Ōnin War Ōnishi, Ehime Onix Onmyōdō Onna, Okinawa Ono, Hyōgo Ono, Fukui Ono, Fukushima Ono, Gifu Ōno, Hiroshima Ōno, Hokkaidō Ōno, Iwate Ōno, Ōita Ōno District, Fukui Ōno District, Gifu Ōno District, Ōita Ono no Komachi Ōno River Shinji Ono Yoko Ono Onoda, Yamaguchi Hiroo Onoda Onoe Saishu Onohara, Kagawa Ōnojō, Fukuoka Onomi, Kōchi Onomichi, Hiroshima Onsen Onsen District, Ehime Onsen, Hyōgo
Oo Ooka Shohei Ōoka Tadasuke Oomoto Ōoku Oozaru
Op Operation Stardust
Or Orient Watch Origami Original video animation Orix BlueWave Oroshi hocho Oroshigane Orphen
Os Osa, Okayama Osafune, Okayama Osaka Aquarium Kaiyukan Osaka Bay Osaka Castle Osaka Eco Agricultural Products Osaka International Airport Osaka Line Osaka Loop Line Osaka Monorail Osaka Municipal Subway Osaka Prefecture Osaka Station Osaka, Osaka Osaka Tower Ōsakasayama, Osaka Ōsaki Station Ōsaki, Kagoshima Ōsakikamijima, Hiroshima Osechi Mamoru Oshii Shunrō Oshikawa Oshikura Manju Oshima, Fukuoka Oshima, Yamaguchi Ōshima District, Kagoshima Ōshima District, Yamaguchi Nagisa Oshima Oshima Subprefecture Towa Oshima Oshiruko Oshizushihako Sakae Osugi Osuka, Shizuoka Osumi Province Osumi, Kagoshima
Ot Ōta Dōkan Fusae Ota Ōta, Gunma Ōta, Ōita Ōta, Tokyo Masahide Ota Ōtake, Hiroshima Otaku Otaku no Video Otaru, Hokkaidō Ōtawara, Tochigi Oto, Fukuoka Oto, Nara Oto, Wakayama Otokuni District, Kyoto Katsuhiro Otomo Ōtomo no Yakamochi Otomo Yoshihide Otoshi buta Otowa, Aichi Ōtoyo, Kōchi Ōtsu, Shiga Otsu District, Yamaguchi Ōtsuki, Yamanashi Ōtsuki, Kōchi
Ou Ouchi, Saga Ōuchiyama, Mie Ouda, Nara Ōura, Kagoshima Outlaw Star
Ow Owari Province Owariasahi, Aichi Owase, Mie
Ov Overman King Gainer
Oy Oyabe, Toyama Oyakoba Oyakodon Ōyama, Ōita Oyama, Shizuoka Oyama, Tochigi Ōyama Iwao Oyama Shrine (Ishikawa) Oyamada, Mie Ōyamazaki, Kyoto Oyano, Kumamoto Ōyodo, Nara
Oz Ozaki Koyo Ozato, Okinawa Ōzeki Ōzu, Ehime Ōzu, Kumamoto Yasujirō Ozu