Places beginning with OK in Japan (general), Japan
Okagaki-machi
Okagata-mura
Ōkawa-chō
Ōkawa-gun
Ōkawa-mura
Ōkawa-mura
Ōkawa-shi
Okayama-shi
Okaya-shi
Okazaki-shi
Okegawa-machi
Okegawa-shi
Oki-gun
Ōki-machi
Okinawa-shi
Okinohata-mura
Okinoshima-mura
Okitama-gun
Okoppe-chō
Okoshi-chō
Ōkōzu-mura
Ōkubo-mura
Ōkuchi-shi
Oku-chō
Okugawa-mura
Ōkuma-machi
Ōkuma-mura
Okuna-mura
Oku-son
Okutama-machi
Ōkuwa-mura