| Name | What | Region | Country | Lat | Long | Elev Ft. | Pop Est |
| O-hsien | city | Shanxi Sheng | China | 36.8666667 | 110.9666667 | 4379 | 7708 |
| O-hu-t'an | city | Shanxi Sheng | China | 38.5197222 | 111.3119444 | 4251 | 9548 |
| O-k'ou | city | Shanxi Sheng | China | 39.1297222 | 113.1936111 | 3133 | 12883 |
| O-k'ou-chen | city | Shanxi Sheng | China | 39.1297222 | 113.1936111 | 3133 | 12883 |
| O-mao-k'ou | city | Shanxi Sheng | China | 39.8769444 | 113.0341667 | 3713 | 39676 |
| O-wu | city | Shanxi Sheng | China | 35.88 | 113.5602778 | 4488 | 32262 |
| O-wu-ling | city | Shanxi Sheng | China | 35.88 | 113.5602778 | 4488 | 32262 |
| Ou-chia-ts'un | city | Shanxi Sheng | China | 40.1333333 | 112.5 | 4865 | 5819 |
| Oujiacun | city | Shanxi Sheng | China | 40.1333333 | 112.5 | 4865 | 5819 |
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