UpAlphabetical listing of Places in Papua New Guinea
| Name | What | Region | Country | Lat | Long | Elev ft. | Pop est |
| Osako | city | Northern | Papua New Guinea | -8.59 | 147.91 | 830 | 596 |
| Osaroa | city | Eastern Highlands | Papua New Guinea | -6.44 | 146.02 | 5029 | 3129 |
| Osasu | city | Western | Papua New Guinea | -6.60 | 142.60 | 1000 | 180 |
| Osavitei | city | Eastern Highlands | Papua New Guinea | -6.51 | 145.36 | 6249 | 3129 |
| Osena | city | Eastern Highlands | Papua New Guinea | -6.42 | 145.65 | 6709 | 3129 |
| Osikwea | city | Milne Bay | Papua New Guinea | -8.83 | 151.15 | 3 | 282 |
| Osima | city | West Sepik | Papua New Guinea | -2.91 | 141.29 | 830 | 596 |
| Osol | city | West Sepik | Papua New Guinea | -2.89 | 141.24 | 830 | 596 |
| Ossima | city | West Sepik | Papua New Guinea | -2.91 | 141.29 | 830 | 596 |
| Ossimor | city | West Sepik | Papua New Guinea | -2.91 | 141.29 | 830 | 596 |
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