| Name | What | Region | Country | Lat | Long | Elev ft. | Pop est |
|---|---|---|---|---|---|---|---|
| Sirai | city | Chimbu | Papua New Guinea | -6.09 | 144.99 | 5869 | 4023 |
| Siranungai | city | Madang | Papua New Guinea | -4.87 | 145.05 | 830 | 1341 |
| Sirasira | city | Morobe | Papua New Guinea | -6.33 | 146.48 | 2509 | 1490 |
| Sirembi | city | Northern | Papua New Guinea | -8.75 | 148.03 | 830 | 596 |
| Siremi | city | Northern | Papua New Guinea | -8.73 | 148.42 | 65 | 504 |
| Siri | city | Northern | Papua New Guinea | -8.57 | 147.97 | 347 | 596 |
| Siri Siri Mission | city | Milne Bay | Papua New Guinea | -9.87 | 149.72 | 370 | 1086 |
| Sirigubi | city | Western | Papua New Guinea | -6.30 | 142.32 | 830 | 149 |
| Siriken | city | Madang | Papua New Guinea | -4.49 | 144.91 | 830 | 1341 |
| Sirikin | city | Madang | Papua New Guinea | -4.49 | 144.91 | 830 | 1341 |
| Sirikoki | city | Chimbu | Papua New Guinea | -6.12 | 145.07 | 5387 | 4023 |
| Sirimo | city | Milne Bay | Papua New Guinea | -9.62 | 149.67 | 3 | 926 |
| Sirin | city | Madang | Papua New Guinea | -4.40 | 144.92 | 377 | 1341 |
| Sirinibu Government Station | city | Madang | Papua New Guinea | -5.03 | 144.67 | 170 | 1341 |
| Sirinimbu | city | Madang | Papua New Guinea | -5.03 | 144.67 | 170 | 1341 |
| Sirisa | city | Western | Papua New Guinea | -8.44 | 141.46 | 147 | 149 |
| Sirisiri | city | Milne Bay | Papua New Guinea | -9.87 | 149.72 | 370 | 1086 |
| Sirodubi | city | Western | Papua New Guinea | -6.20 | 142.50 | 1200 | 149 |
| Sirof | city | Bougainville | Papua New Guinea | -4.46 | 154.17 | 3 | 240 |
| Siroi | city | Bougainville | Papua New Guinea | -6.05 | 155.28 | 1187 | 2235 |
| Sirorata | city | Northern | Papua New Guinea | -8.98 | 148.02 | 1000 | 596 |
| Sirra | city | Manus | Papua New Guinea | -2.13 | 147.18 | 206 | 2383 |
| Sirum 1 | city | Central | Papua New Guinea | -9.58 | 147.77 | 875 | 596 |
| Sirum 2 | city | Central | Papua New Guinea | -9.60 | 147.76 | 862 | 596 |
| Sirunki | city | Enga | Papua New Guinea | -5.40 | 143.45 | 8389 | 2831 |
| Siruru | city | Bougainville | Papua New Guinea | -6.38 | 155.56 | 2834 | 2235 |