Companies catalogue
- OAルームビギン桜井, Sakurai-shi
- OK − ONE Animal Clinic, Tōon-shi
- OUT THERE, Matsuyama-shi
- Oashisu Group Home, Matsuyama-shi
- Oba Shrine, Meiwa-chō
- Ochi Clinic, Matsuyama-shi
- Ochi Dental Clinic, Matsuyama-shi
- Ochi Internal Medicine Cardiology, Masaki-chō
- Ochi Shipyard, Saijō-shi
- Odaigahara Visitor Center, Kamikitayama-mura
- Odango, Matsuyama-shi
- Ogawa Shrine, Matsusaka-shi
- Ogiwara Shrine, Ōdai-chō
- Oguraseienhonmachi Hall, Matsuyama-shi
- Oguraseientsukiyama Hall, Matsuyama-shi
- Oguri Dental Clinic, Matsuyama-shi
- Ohara Dental Clinic, Matsuyama-shi
- Ohisama Family Clinic, Masaki-chō
- Oi Dental Clinic, Matsuyama-shi
- Oka Orthodontic, Matsuyama-shi
- Okada Dental Clinic, Matsuyama-shi
- Okada Dentistry Clinic, Masaki-chō
- Okada Taxis, Masaki-chō
- Okagami Shrine, Taki-chō
- Okamoto Dental Clinic, Matsuyama-shi
- Okayama Dental Clinic, Matsuyama-shi
- Okinaga Internal Medicine Clinic, Matsuyama-shi
- Okita Group Home, Tobe-chō
- Okonomiyaki Dontaku, Matsuyama-shi
- Okudogo Bus Okudogo Taxis, Matsuyama-shi
- Okudogo Ichiyu-no-mori 奥道後 壱湯の守, Matsuyama-shi
- Okujima Animal Clinic, Matsuyama-shi
- Okushi Beach Resort, Matsuyama-shi
- Olick, Tobe-chō
- Omata Valley, Higashiyoshino
- Omogo Taxis, Kumakōgen-chō
- Omoriken Chozen Dental Clinic, 松山市
- Omura Shrine, Iga-shi
- On-Yasai, Matsuyama-shi
- On-Yasai, Matsuyama
- Onishi Internal Medicine Clinic, Matsuyama-shi
- Ono Dental Clinic, Tobe-chō
- Ono Dental Clinic, Matsuyama-shi
- Ono Dermatology, Matsuyama-shi
- Ono Ophthalmology Clinic, Matsuyama-shi
- Open Care | Ehimeken Matsuyamashi Nokaigo Taxis, 愛媛県松山市
- Oriental Motors, Matsuyama-shi
- Orion Dental Clinic, Matsuyama-shi
- Orionfukushi Taxis, Matsuyama-shi
- Osaka Employment Service Center for Foreigners, Ōsaka-shi
- Osaka Gas LPG (Ltd.), Ōsaka-shi
- Osakaya Clinic, Matsuyama-shi
- Osato Water Treatment Plant, Tsu-shi
- Oseto Clinics, Matsuyama-shi
- Oshikata Dental Clinic, Matsuyama-shi
- Oshima School of Nursing, Suōōshima-chō
- Oshin Dental Clinic, Matsuyama-shi
- Oshiro Surgery Sunshine Filtering Through Foliage Clinic, Matsuyama-shi
- Oshiro Surgical Gastroenterologist, Matsuyama-shi
- Osteria 6（オステリア セイ）, Matsuyama-shi
- Otaki Shrine, 大紀町
- Otoi, Matsuyama-shi
- Otsuka Dentistry Clinic, Matsuyama-shi
- Ouchi Dental Clinic, Matsuyama-shi
- Ouchiyama Zoo, Taiki-chō
- Ozaki Dental Clinic, Matsuyama-shi
- Ozu Golf Club, Ōzu-shi
- Ozu Total Gymnastics, Ōzu-shi