Cities
| Country Name | City Name - [Romanized Name] | Is Captial? | Coordinates Source | Actions |
| Japan | 沼津市 - Numazu | Geographical Survey Institute (GSI) | ||
| Japan | 帯広市 - Obihiro | Geographical Survey Institute (GSI) | ||
| Japan | 小田原市 - Odawara | Geographical Survey Institute (GSI) | ||
| Japan | 大垣市 - Ogaki | Geographical Survey Institute (GSI) | ||
| Japan | 大分市 - Oita | Geographical Survey Institute (GSI) | ||
| Japan | 岡山市 - Okayama | Geographical Survey Institute (GSI) | ||
| Japan | 岡崎市 - Okazaki | Geographical Survey Institute (GSI) | ||
| Japan | 沖縄市 - Okinawa | Geographical Survey Institute (GSI) | ||
| Japan | 青梅市 - Ome | Geographical Survey Institute (GSI) | ||
| Japan | 大牟田市 - Omuta | Geographical Survey Institute (GSI) | ||
| Japan | 尾道市 - Onomichi | Geographical Survey Institute (GSI) | ||
| Japan | 大阪市 - Osaka | Geographical Survey Institute (GSI) | ||
| Japan | 太田市 - Ota | Geographical Survey Institute (GSI) | ||
| Japan | 小樽市 - Otaru | Geographical Survey Institute (GSI) | ||
| Japan | 大津市 - Otsu | Geographical Survey Institute (GSI) | ||
| Japan | 小山市 - Oyama | Geographical Survey Institute (GSI) | ||
| Japan | 佐賀市 - Saga | Geographical Survey Institute (GSI) | ||
| Japan | 相模原市 - Sagamihara | Geographical Survey Institute (GSI) | ||
| Japan | 西条市 - Saijo | Geographical Survey Institute (GSI) | ||
| Japan | さいたま市 - Saitama | Geographical Survey Institute (GSI) | ||
| Japan | 堺市 - Sakai | Geographical Survey Institute (GSI) | ||
| Japan | 佐久市 - Saku | Geographical Survey Institute (GSI) | ||
| Japan | 佐倉市 - Sakura | Geographical Survey Institute (GSI) | ||
| Japan | 三田市 - Sanda | Geographical Survey Institute (GSI) | ||
| Japan | 三条市 - Sanjo | Geographical Survey Institute (GSI) |