| Name | What | Region | Country | Lat | Long | Elev ft. | Pop est |
|---|---|---|---|---|---|---|---|
| 오가물 | city | Chungnam | Korea, Republic of (South) | 36.81 | 126.86 | 59 | 16110 |
| 오강리 | city | Chungnam | Korea, Republic of (South) | 36.26 | 127.07 | 6 | 16834 |
| 오곡 | city | Chungnam | Korea, Republic of (South) | 36.79 | 126.29 | 55 | 23767 |
| 오곡동 | city | Chungnam | Korea, Republic of (South) | 36.41 | 127.12 | 830 | 33610 |
| 오곡리 | city | Chungnam | Korea, Republic of (South) | 36.94 | 126.77 | 9 | 10324 |
| 오골 | city | Chungnam | Korea, Republic of (South) | 36.16 | 127.43 | 830 | 66187 |
| 오골 | city | Chungnam | Korea, Republic of (South) | 36.65 | 127.22 | 232 | 15845 |
| 오구미 | city | Chungnam | Korea, Republic of (South) | 36.24 | 127.15 | 26 | 28596 |
| 오남동 | city | Chungnam | Korea, Republic of (South) | 36.75 | 126.48 | 36 | 41569 |
| 오남동 | city | Chungnam | Korea, Republic of (South) | 36.76 | 126.47 | 16 | 48112 |
| 오도 | city | Chungnam | Korea, Republic of (South) | 36.94 | 126.63 | 22 | 25409 |
| 오동나무골 | city | Chungnam | Korea, Republic of (South) | 36.17 | 127.18 | 141 | 30050 |
| 오동리 | city | Chungnam | Korea, Republic of (South) | 36.43 | 127.05 | 42 | 10706 |
| 오두 | city | Chungnam | Korea, Republic of (South) | 36.60 | 126.52 | 9 | 12168 |
| 오두리 | city | Chungnam | Korea, Republic of (South) | 36.60 | 126.53 | 29 | 12790 |
| 오두재 | city | Chungnam | Korea, Republic of (South) | 36.38 | 127.00 | 377 | 7551 |
| 오로모시 | city | Chungnam | Korea, Republic of (South) | 36.73 | 126.81 | 16 | 43649 |
| 오룡 | city | Chungnam | Korea, Republic of (South) | 36.11 | 127.45 | 830 | 13726 |
| 오룡 | city | Chungnam | Korea, Republic of (South) | 36.45 | 127.24 | 173 | 8459 |
| 오룡골 | city | Chungnam | Korea, Republic of (South) | 36.45 | 126.88 | 892 | 7700 |
| 오룡골 | city | Chungnam | Korea, Republic of (South) | 36.91 | 126.97 | 13 | 16569 |
| 오룡골 | city | Chungnam | Korea, Republic of (South) | 36.35 | 127.01 | 196 | 7518 |
| 오룡동 | city | Chungnam | Korea, Republic of (South) | 36.81 | 126.86 | 45 | 16110 |
| 오룡리 | city | Chungnam | Korea, Republic of (South) | 36.41 | 127.07 | 137 | 14907 |
| 오룡리 | city | Chungnam | Korea, Republic of (South) | 36.45 | 126.87 | 892 | 7721 |
| 오류골 | city | Chungnam | Korea, Republic of (South) | 36.47 | 126.77 | 830 | 10200 |
| 오류동 | city | Chungnam | Korea, Republic of (South) | 36.71 | 126.22 | 127 | 6048 |
| 오류동 | city | Chungnam | Korea, Republic of (South) | 36.78 | 127.06 | 91 | 76434 |
| 오류동 | city | Chungnam | Korea, Republic of (South) | 36.16 | 127.16 | 147 | 42044 |
| 오름실 | city | Chungnam | Korea, Republic of (South) | 36.50 | 126.97 | 830 | 7301 |
| 오리골 | city | Chungnam | Korea, Republic of (South) | 36.72 | 126.41 | 36 | 20589 |
| 오리골 | city | Chungnam | Korea, Republic of (South) | 36.58 | 126.55 | 3 | 15865 |
| 오리골 | city | Chungnam | Korea, Republic of (South) | 36.88 | 127.03 | 72 | 18504 |
| 오리골 | city | Chungnam | Korea, Republic of (South) | 36.77 | 127.16 | 295 | 79356 |
| 오리울 | city | Chungnam | Korea, Republic of (South) | 36.53 | 126.85 | 367 | 8560 |
| 오리울 | city | Chungnam | Korea, Republic of (South) | 36.34 | 126.80 | 239 | 8491 |
| 오만이 | city | Chungnam | Korea, Republic of (South) | 36.52 | 126.52 | 0 | 13008 |
| 오목 | city | Chungnam | Korea, Republic of (South) | 36.81 | 126.93 | 26 | 45552 |
| 오목리 | city | Chungnam | Korea, Republic of (South) | 36.80 | 126.92 | 32 | 45533 |
| 오목산 | city | Chungnam | Korea, Republic of (South) | 36.26 | 126.86 | 3 | 20708 |
| 오목절 | city | Chungnam | Korea, Republic of (South) | 36.77 | 126.74 | 49 | 13973 |
| 오미 | city | Chungnam | Korea, Republic of (South) | 36.37 | 127.16 | 262 | 7301 |
| 오미 | city | Chungnam | Korea, Republic of (South) | 36.75 | 126.47 | 45 | 42261 |
| 오미 | city | Chungnam | Korea, Republic of (South) | 36.50 | 126.71 | 301 | 16266 |
| 오미 | city | Chungnam | Korea, Republic of (South) | 36.13 | 127.27 | 830 | 8497 |
| 오미리 | city | Chungnam | Korea, Republic of (South) | 36.72 | 127.00 | 830 | 27144 |
| 오번리 | city | Chungnam | Korea, Republic of (South) | 36.34 | 126.80 | 173 | 8491 |
| 오봉리 | city | Chungnam | Korea, Republic of (South) | 36.59 | 126.62 | 183 | 27110 |
| 오사 | city | Chungnam | Korea, Republic of (South) | 36.95 | 126.75 | 32 | 11004 |
| 오사리 | city | Chungnam | Korea, Republic of (South) | 36.83 | 126.43 | 167 | 30136 |
| 오산 | city | Chungnam | Korea, Republic of (South) | 36.28 | 126.95 | 193 | 31423 |
| 오산 | city | Chungnam | Korea, Republic of (South) | 36.49 | 126.66 | 173 | 16241 |
| 오산리 | city | Chungnam | Korea, Republic of (South) | 36.73 | 126.80 | 36 | 37791 |
| 오산리 | city | Chungnam | Korea, Republic of (South) | 36.80 | 126.92 | 32 | 48414 |
| 오산리 | city | Chungnam | Korea, Republic of (South) | 36.13 | 127.28 | 305 | 8516 |
| 오산말 | city | Chungnam | Korea, Republic of (South) | 36.76 | 126.95 | 124 | 52248 |
| 오살뫼 | city | Chungnam | Korea, Republic of (South) | 36.39 | 126.96 | 236 | 7722 |
| 오살미 | city | Chungnam | Korea, Republic of (South) | 36.27 | 126.95 | 193 | 34348 |
| 오생이 | city | Chungnam | Korea, Republic of (South) | 36.68 | 126.67 | 45 | 12475 |
| 오선대 | city | Chungnam | Korea, Republic of (South) | 36.49 | 126.99 | 830 | 7301 |
| 오성리 | city | Chungnam | Korea, Republic of (South) | 36.49 | 126.66 | 830 | 16128 |
| 오수리 | city | Chungnam | Korea, Republic of (South) | 36.30 | 126.89 | 19 | 29372 |
| 오수물 | city | Chungnam | Korea, Republic of (South) | 36.12 | 127.50 | 830 | 18454 |
| 오실 | city | Chungnam | Korea, Republic of (South) | 36.41 | 127.11 | 301 | 31072 |
| 오야골 | city | Chungnam | Korea, Republic of (South) | 36.31 | 126.94 | 16 | 33416 |
| 오야골 | city | Chungnam | Korea, Republic of (South) | 36.45 | 127.16 | 104 | 55974 |
| 오얏고지 | city | Chungnam | Korea, Republic of (South) | 36.67 | 127.20 | 232 | 24800 |
| 오얏골 | city | Chungnam | Korea, Republic of (South) | 36.36 | 126.62 | 830 | 47888 |
| 오얏말 | city | Chungnam | Korea, Republic of (South) | 36.40 | 126.73 | 830 | 8968 |
| 오양실 | city | Chungnam | Korea, Republic of (South) | 36.19 | 127.30 | 830 | 202115 |
| 오지랭이 | city | Chungnam | Korea, Republic of (South) | 36.34 | 126.77 | 830 | 8676 |
| 오지리 | city | Chungnam | Korea, Republic of (South) | 36.96 | 126.37 | 39 | 11085 |
| 오지올 | city | Chungnam | Korea, Republic of (South) | 36.62 | 127.10 | 232 | 32065 |
| 오지평 | city | Chungnam | Korea, Republic of (South) | 36.83 | 126.44 | 32 | 33585 |
| 오촌리 | city | Chungnam | Korea, Republic of (South) | 36.71 | 126.80 | 32 | 39660 |
| 오추리 | city | Chungnam | Korea, Republic of (South) | 36.77 | 126.74 | 45 | 13401 |
| 오탐말 | city | Chungnam | Korea, Republic of (South) | 36.58 | 127.28 | 85 | 57278 |
| 오평 | city | Chungnam | Korea, Republic of (South) | 36.27 | 127.02 | 42 | 8842 |
| 오항동 | city | Chungnam | Korea, Republic of (South) | 36.10 | 127.38 | 1207 | 9171 |
| 오항리 | city | Chungnam | Korea, Republic of (South) | 36.10 | 127.37 | 1026 | 9118 |