| Name | What | Region | Country | Lat | Long | Elev Ft. | Pop Est |
| O-ch'eng | city | Hubei Sheng | China | 30.4 | 114.8333333 | 65 | 80562 |
| O-ch'eng-hsien | city | Hubei Sheng | China | 30.4 | 114.8333333 | 65 | 80562 |
| Ou-ch'ih-k'ou | city | Hubei Sheng | China | 29.75 | 112.3166667 | 95 | 58186 |
| Ou-chia-miao | city | Hubei Sheng | China | 31.8566667 | 112.1594444 | 226 | 44582 |
| Ou-chia-tien | city | Hubei Sheng | China | 31.6733333 | 111.0563889 | 1929 | 12523 |
| Ou-chia-tien | city | Hubei Sheng | China | 31.8566667 | 112.1594444 | 226 | 44582 |
| Ou-tien | city | Hubei Sheng | China | 31.6733333 | 111.0563889 | 1929 | 12523 |
| Ouchikou | city | Hubei Sheng | China | 29.75 | 112.3166667 | 95 | 58186 |
| Oudian | city | Hubei Sheng | China | 31.6733333 | 111.0563889 | 1929 | 12523 |
| Oukiamiao | city | Hubei Sheng | China | 31.8566667 | 112.1594444 | 226 | 44582 |
| Oumiao | city | Hubei Sheng | China | 31.8566667 | 112.1594444 | 226 | 44582 |
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