| Name | What | Region | Country | Lat | Long | Elev ft. | Pop est |
|---|---|---|---|---|---|---|---|
| Oya | city | Gyeongbuk | Korea, Republic of (South) | 35.93 | 129.26 | 337 | 33569 |
| Oya-dong | city | Daegu | Korea, Republic of (South) | 35.82 | 128.62 | 364 | 724568 |
| Oya-dong | city | Gyeonggi | Korea, Republic of (South) | 37.45 | 127.14 | 226 | 1019163 |
| Oya-gol | city | Gangwon | Korea, Republic of (South) | 37.48 | 128.02 | 830 | 40144 |
| Oya-gol | city | Chungnam | Korea, Republic of (South) | 36.31 | 126.94 | 16 | 33416 |
| Oya-ri | city | Gyeongbuk | Korea, Republic of (South) | 35.93 | 129.26 | 337 | 33569 |
| Oyadong | city | Gyeonggi | Korea, Republic of (South) | 37.72 | 126.99 | 830 | 134977 |
| Oyagok | city | Gyeonggi | Korea, Republic of (South) | 37.50 | 127.19 | 830 | 630377 |
| Oyagok | city | Gyeonggi | Korea, Republic of (South) | 37.50 | 127.19 | 830 | 630377 |
| Oyagol | city | Chungbuk | Korea, Republic of (South) | 37.05 | 127.64 | 830 | 15425 |
| Oyagol | city | Chungnam | Korea, Republic of (South) | 36.45 | 127.16 | 104 | 55974 |
| Oyak-kol | city | Chungbuk | Korea, Republic of (South) | 37.05 | 127.64 | 830 | 15425 |
| Oyak-kol | city | Chungnam | Korea, Republic of (South) | 36.36 | 126.62 | 830 | 47888 |
| Oyak-kol | city | Daejeon | Korea, Republic of (South) | 36.46 | 127.38 | 170 | 101991 |
| Oyakkol | city | Gyeonggi | Korea, Republic of (South) | 37.18 | 126.69 | 170 | 4940 |
| Oyan-mal | city | Chungnam | Korea, Republic of (South) | 36.40 | 126.73 | 830 | 8968 |
| Oyang-gol | city | Chungbuk | Korea, Republic of (South) | 37.13 | 127.89 | 1669 | 9992 |
| Oyang-ni | city | Gyeongnam | Korea, Republic of (South) | 34.88 | 128.50 | 830 | 31828 |
| Oyanggol | city | Gangwon | Korea, Republic of (South) | 37.82 | 127.60 | 830 | 3638 |
| Oyangsan | city | Chungbuk | Korea, Republic of (South) | 36.93 | 127.44 | 196 | 12864 |
| Oyangsil | city | Chungnam | Korea, Republic of (South) | 36.19 | 127.30 | 830 | 202115 |
| Oyanmal | city | Chungbuk | Korea, Republic of (South) | 36.63 | 127.78 | 1017 | 12023 |
| Oyasan | city | Gangwon | Korea, Republic of (South) | 38.17 | 127.24 | 830 | 9726 |
| Oyaso | city | Gyeonggi | Korea, Republic of (South) | 37.41 | 127.13 | 255 | 764472 |
| Oyasu | city | Gyeonggi | Korea, Republic of (South) | 37.46 | 127.22 | 830 | 149414 |
| Oyatgamagol | city | Gyeonggi | Korea, Republic of (South) | 37.73 | 127.21 | 830 | 71928 |
| Oyatgoji | city | Chungnam | Korea, Republic of (South) | 36.67 | 127.20 | 232 | 24800 |
| Oyatgol | city | Chungbuk | Korea, Republic of (South) | 37.05 | 127.64 | 830 | 15425 |
| Oyatgol | city | Daejeon | Korea, Republic of (South) | 36.46 | 127.38 | 170 | 101991 |
| Oyatmaeul | city | Gyeonggi | Korea, Republic of (South) | 37.70 | 127.17 | 213 | 123477 |
| Oyon | city | Gyeongnam | Korea, Republic of (South) | 35.30 | 128.44 | 830 | 19245 |
| Oyon'gum | city | Gyeongnam | Korea, Republic of (South) | 34.82 | 128.25 | 0 | 4134 |
| Oyong | city | Jeonnam | Korea, Republic of (South) | 34.91 | 127.49 | 59 | 76260 |
| Oyong-dong | city | Gyeonggi | Korea, Republic of (South) | 37.67 | 126.82 | 98 | 293279 |
| Oyong-dong | city | Korea, Republic of (South) | 35.05 | 126.25 | 26 | 38440 | |
| Oyong-gol | city | Gangwon | Korea, Republic of (South) | 37.57 | 127.92 | 1669 | 945 |
| Oyong-ni | city | Gyeongnam | Korea, Republic of (South) | 34.87 | 128.03 | 203 | 9335 |
| Oyong-ni | city | Gyeongnam | Korea, Republic of (South) | 34.86 | 128.03 | 82 | 11472 |
| Oyonggok | city | Gyeongbuk | Korea, Republic of (South) | 36.51 | 129.00 | 964 | 3980 |
| Oyu-dong | city | Korea, Republic of (South) | 35.10 | 126.32 | 52 | 4078 | |
| Oyu-ri | city | Jeonnam | Korea, Republic of (South) | 34.90 | 127.00 | 830 | 8493 |
| Oyŏn-ni | city | Gyeonggi | Korea, Republic of (South) | 37.05 | 126.98 | 26 | 38363 |