| Name | What | Region | Country | Lat | Long | Elev Ft. | Pop Est |
| Oekwanda | city | Sandaun Province | Papua New Guinea | -3.65 | 141.0833333 | 941 | 719 |
| Oem | city | Sandaun Province | Papua New Guinea | -3.3 | 141 | 1692 | 851 |
| Ogduruk | city | Sandaun Province | Papua New Guinea | -4.8833333 | 141.0666667 | 6784 | 719 |
| Ogru | city | Sandaun Province | Papua New Guinea | -3.8666667 | 141.3833333 | 485 | 719 |
| Ogru One | city | Sandaun Province | Papua New Guinea | -3.8333333 | 141.3 | 528 | 719 |
| Ogru Two | city | Sandaun Province | Papua New Guinea | -3.85 | 141.2833333 | 518 | 719 |
| Old Ainbai | city | Sandaun Province | Papua New Guinea | -3.1333333 | 141.1666667 | 1742 | 719 |
| Old Akimari | city | Sandaun Province | Papua New Guinea | -3.6 | 141.0833333 | 1545 | 719 |
| Old Asor | city | Sandaun Province | Papua New Guinea | -3.5166667 | 142.6166667 | 1046 | 825 |
| Old Buna | city | Sandaun Province | Papua New Guinea | -3.9666667 | 141.2666667 | 442 | 719 |
| Old Einokneri | city | Sandaun Province | Papua New Guinea | -3.5166667 | 141.1666667 | 1322 | 719 |
| Old Epmi | city | Sandaun Province | Papua New Guinea | -3.3166667 | 141.1 | 1692 | 719 |
| Old Fongwinam | city | Sandaun Province | Papua New Guinea | -3.75 | 141.05 | 987 | 719 |
| Old Fugumui | city | Sandaun Province | Papua New Guinea | -3.2333333 | 141.4 | 1866 | 719 |
| Old Goiniri | city | Sandaun Province | Papua New Guinea | -3.2833333 | 142.05 | 1302 | 719 |
| Old Iafar 3 | city | Sandaun Province | Papua New Guinea | -3.5 | 141.1166667 | 1699 | 719 |
| Old Ibagum | city | Sandaun Province | Papua New Guinea | -3.5666667 | 141.2166667 | 1000 | 719 |
| Old Imbrinis | city | Sandaun Province | Papua New Guinea | -2.95 | 141.3833333 | 383 | 719 |
| Old Kamberatoro | city | Sandaun Province | Papua New Guinea | -3.6166667 | 141.0666667 | 1184 | 719 |
| Old Musu | city | Sandaun Province | Papua New Guinea | -2.6333333 | 141.1 | 403 | 498 |
| Old Paw Paw | city | Sandaun Province | Papua New Guinea | -3.0333333 | 141.0833333 | 895 | 719 |
| Old Pendesi | city | Sandaun Province | Papua New Guinea | -3.2333333 | 141.0333333 | 2611 | 851 |
| Old Pendessi | city | Sandaun Province | Papua New Guinea | -3.2333333 | 141.0333333 | 2611 | 851 |
| Old Simog | city | Sandaun Province | Papua New Guinea | -3.3 | 141.25 | 974 | 719 |
| Old Waris | city | Sandaun Province | Papua New Guinea | -3.2666667 | 141 | 1840 | 851 |
| Olul | city | Sandaun Province | Papua New Guinea | -2.95 | 141.2666667 | 541 | 719 |
| Omol | city | Sandaun Province | Papua New Guinea | -3.3 | 141.1 | 1653 | 719 |
| Omol Epmi | city | Sandaun Province | Papua New Guinea | -3.3 | 141.1 | 1653 | 719 |
| Omombule | city | Sandaun Province | Papua New Guinea | -3.0833333 | 141.0833333 | 1040 | 719 |
| Omula | city | Sandaun Province | Papua New Guinea | -2.9166667 | 141.3166667 | 410 | 719 |
| Onei | city | Sandaun Province | Papua New Guinea | -2.95 | 141.15 | 725 | 719 |
| Onei | city | Sandaun Province | Papua New Guinea | -2.95 | 141.85 | 0 | 292 |
| Onepi | city | Sandaun Province | Papua New Guinea | -2.95 | 141.15 | 725 | 719 |
| Ongabip | city | Sandaun Province | Papua New Guinea | -4.7 | 141.0666667 | 1440 | 719 |
| Ori | city | Sandaun Province | Papua New Guinea | -3.5 | 142.4 | 1768 | 719 |
| Orkwanda | city | Sandaun Province | Papua New Guinea | -3.65 | 141.0833333 | 941 | 719 |
| Orutei | city | Sandaun Province | Papua New Guinea | -3.5 | 142.05 | 1509 | 719 |
| Osima | city | Sandaun Province | Papua New Guinea | -2.9 | 141.3 | 498 | 719 |
| Osol | city | Sandaun Province | Papua New Guinea | -2.8833333 | 141.2333333 | 669 | 719 |
| Ossima | city | Sandaun Province | Papua New Guinea | -2.9 | 141.3 | 498 | 719 |
| Ossimor | city | Sandaun Province | Papua New Guinea | -2.9 | 141.3 | 498 | 719 |
| Otei | city | Sandaun Province | Papua New Guinea | -3.45 | 142.0666667 | 1938 | 719 |
| Otemgi | city | Sandaun Province | Papua New Guinea | -3.4833333 | 142.0166667 | 1669 | 719 |
| Otto | city | Sandaun Province | Papua New Guinea | -3.0333333 | 142.0833333 | 3 | 349 |
| Oweniak | city | Sandaun Province | Papua New Guinea | -3.6166667 | 141.25 | 1000 | 719 |
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