| Name | What | Region | Country | Lat | Long | Elev ft. | Pop est |
|---|---|---|---|---|---|---|---|
| Ong-Mengete | city | Sakha (Yakutiya) | Russia | 62.77 | 117.70 | 830 | 0 |
| Ong-ch'on | city | Gyeonggi | Korea, Republic of (South) | 36.99 | 127.15 | 32 | 69965 |
| Ong-ch’on | city | Gyeonggi | Korea, Republic of (South) | 36.99 | 127.15 | 32 | 69965 |
| Ong-dong | city | P'yongyang | Korea, Dem. Peoples Rep. of (North) | 39.15 | 126.12 | 400 | 29811 |
| Ong-dong | city | Hwangnam | Korea, Dem. Peoples Rep. of (North) | 38.04 | 125.74 | 95 | 172109 |
| Ong-dong | city | P'yongnam | Korea, Dem. Peoples Rep. of (North) | 39.20 | 126.10 | 387 | 23608 |
| Ong-dong | city | Gyeongbuk | Korea, Republic of (South) | 36.60 | 128.37 | 347 | 7204 |
| Ong-dong | city | Korea, Republic of (South) | 35.53 | 126.90 | 357 | 46394 | |
| Ong-gol | city | Hwangbuk | Korea, Dem. Peoples Rep. of (North) | 38.32 | 126.06 | 387 | 12963 |
| Ong-gol | city | Gangwon | Korea, Republic of (South) | 37.21 | 127.87 | 994 | 16522 |
| Ong-gol | city | Gyeongnam | Korea, Republic of (South) | 35.15 | 128.38 | 830 | 38300 |
| Ong-ni | city | Kangwon | Korea, Dem. Peoples Rep. of (North) | 39.05 | 127.54 | 830 | 15724 |
| Ong-ni | city | P'yongnam | Korea, Dem. Peoples Rep. of (North) | 38.90 | 125.35 | 278 | 45299 |
| Ong-ni | city | P'yongbuk | Korea, Dem. Peoples Rep. of (North) | 40.34 | 124.85 | 915 | 18476 |
| Ong-ni | city | Jeonnam | Korea, Republic of (South) | 34.90 | 127.07 | 987 | 7890 |
| Ong-ni | city | Jeonnam | Korea, Republic of (South) | 35.16 | 127.08 | 830 | 8859 |