| Name | What | Region | Country | Lat | Long | Elev ft. | Pop est |
|---|---|---|---|---|---|---|---|
| Ongsaengi-gol | city | Chungnam | Korea, Republic of (South) | 36.87 | 126.78 | 3 | 13789 |
| Ongsan-dong | city | Hambuk | Korea, Dem. Peoples Rep. of (North) | 41.96 | 129.86 | 830 | 10877 |
| Ongsang | city | Shan State | Burma | 22.01 | 97.40 | 2509 | 2349 |
| Ongsjosaetra | city | Oppland | Norway | 61.32 | 9.67 | 3349 | 0 |
| Ongsjøsætra | city | Oppland | Norway | 61.32 | 9.67 | 3349 | 0 |
| Ongstad | city | Nordland | Norway | 68.52 | 14.73 | 830 | 840 |
| Ongsŏng-dong | city | P'yongnam | Korea, Dem. Peoples Rep. of (North) | 39.36 | 125.44 | 49 | 35432 |
| Ongsŏng-dong | city | Chagang | Korea, Dem. Peoples Rep. of (North) | 41.49 | 126.64 | 1171 | 7450 |
| Ongsŏng-ni | city | P'yongbuk | Korea, Dem. Peoples Rep. of (North) | 39.91 | 125.57 | 137 | 13703 |