| Name | What | Region | Country | Lat | Long | Elev ft. | Pop est |
|---|---|---|---|---|---|---|---|
| O-ch'on | city | Chungbuk | Korea, Republic of (South) | 36.12 | 127.88 | 1033 | 4321 |
| O-ch'on | city | Gyeongbuk | Korea, Republic of (South) | 36.30 | 128.10 | 387 | 5960 |
| O-ch’on | city | Gyeongbuk | Korea, Republic of (South) | 36.30 | 128.10 | 387 | 5960 |
| O-dong | city | Jeonbuk | Korea, Republic of (South) | 35.54 | 127.30 | 830 | 6407 |
| O-dong | city | Gyeongnam | Korea, Republic of (South) | 35.20 | 128.32 | 314 | 22473 |
| O-dong | city | Jeonnam | Korea, Republic of (South) | 34.81 | 127.04 | 830 | 7394 |
| O-dong | city | Jeonbuk | Korea, Republic of (South) | 35.73 | 127.35 | 990 | 4329 |
| O-dong | city | Gyeongbuk | Korea, Republic of (South) | 36.25 | 128.07 | 830 | 5645 |
| O-dong | city | Gyeongbuk | Korea, Republic of (South) | 36.32 | 128.75 | 393 | 6854 |
| O-dong | city | Jeonbuk | Korea, Republic of (South) | 35.71 | 127.63 | 1669 | 5929 |
| O-gol | city | Chungnam | Korea, Republic of (South) | 36.16 | 127.43 | 830 | 66187 |
| O-maŭl | city | Gyeongbuk | Korea, Republic of (South) | 37.06 | 129.00 | 2034 | 10537 |
| O-maŭl | city | Gyeongbuk | Korea, Republic of (South) | 36.61 | 129.32 | 830 | 455 |
| O-ri | city | Jeonnam | Korea, Republic of (South) | 34.72 | 125.47 | 0 | 883 |
| O-ri | city | Jeonnam | Korea, Republic of (South) | 34.66 | 127.38 | 114 | 11961 |
| O-ri | city | Korea, Republic of (South) | 36.23 | 127.31 | 830 | 377883 | |
| O-ri | city | Gyeonggi | Korea, Republic of (South) | 37.48 | 127.31 | 111 | 25630 |
| O-ri | city | Gangwon | Korea, Republic of (South) | 37.29 | 128.92 | 3349 | 2998 |