| Name | What | Region | Country | Lat | Long | Elev ft. | Pop est |
|---|---|---|---|---|---|---|---|
| Sodayankulam | city | Eastern | Sri Lanka | 7.78 | 81.50 | 167 | 23095 |
| Sodiumkulam | city | Eastern | Sri Lanka | 7.78 | 81.50 | 167 | 23095 |
| Sodurugama | city | North Western | Sri Lanka | 7.91 | 80.24 | 354 | 17880 |
| Sogamawatta | city | Central | Sri Lanka | 7.13 | 80.63 | 3349 | 91918 |
| Sogamawatta | city | Central | Sri Lanka | 7.12 | 80.63 | 3349 | 93139 |
| Sohonkalma | city | North Western | Sri Lanka | 7.89 | 79.92 | 160 | 16068 |
| Sohonkalmagama | city | North Western | Sri Lanka | 7.91 | 79.92 | 167 | 16504 |
| Sohonkulama | city | North Western | Sri Lanka | 7.89 | 79.92 | 160 | 16068 |
| Sokampi | city | Eastern | Sri Lanka | 7.68 | 81.55 | 147 | 22954 |
| Solanwewa | city | North Central | Sri Lanka | 8.19 | 80.30 | 288 | 32068 |
| Solayankulama | city | North Central | Sri Lanka | 8.27 | 80.53 | 377 | 17903 |
| Sommerset | city | Central | Sri Lanka | 6.93 | 80.72 | 5029 | 55866 |
| Sonakasalampaikkulam | city | Northern | Sri Lanka | 8.76 | 80.40 | 246 | 9317 |
| Soodaikkuda | city | Eastern | Sri Lanka | 8.51 | 81.31 | 36 | 4728 |
| Soodaikuda | city | Eastern | Sri Lanka | 8.51 | 81.31 | 36 | 4728 |
| Soorakkulama | city | North Western | Sri Lanka | 7.80 | 79.95 | 160 | 17416 |
| Sooriyagama | city | Southern | Sri Lanka | 6.39 | 80.04 | 26 | 77500 |
| Sooriyagoda | city | Southern | Sri Lanka | 6.42 | 80.00 | 3 | 62020 |
| Sooriyagodagama Wattegoda | city | Uva | Sri Lanka | 7.04 | 81.22 | 2080 | 20385 |
| Sooriyagolla | city | Uva | Sri Lanka | 7.11 | 81.13 | 4189 | 19200 |
| Sooriyakaddaikaadu | city | Northern | Sri Lanka | 8.87 | 79.98 | 16 | 9197 |
| Soorukkulama | city | North Western | Sri Lanka | 7.80 | 79.95 | 160 | 17416 |
| Soranathota | city | Uva | Sri Lanka | 7.03 | 81.05 | 2007 | 62123 |
| Soranatota | city | Uva | Sri Lanka | 7.03 | 81.05 | 2007 | 62123 |
| Soranpattu | city | Northern | Sri Lanka | 9.58 | 80.37 | 3 | 11463 |
| Sorempattu | city | Northern | Sri Lanka | 9.58 | 80.37 | 3 | 11463 |
| Sorikalmunai | city | Eastern | Sri Lanka | 7.38 | 81.80 | 22 | 50333 |
| Sorumunai | city | Eastern | Sri Lanka | 7.73 | 81.62 | 59 | 28113 |
| Sorumunai Number 2 | city | Eastern | Sri Lanka | 7.73 | 81.62 | 59 | 28113 |
| Sorumunai Number Two | city | Eastern | Sri Lanka | 7.73 | 81.62 | 59 | 28113 |
| Sothithelvu | city | Northern | Sri Lanka | 9.58 | 79.84 | 39 | 14614 |
| Sottupitiyawadi | city | North Western | Sri Lanka | 8.13 | 79.73 | 3 | 20367 |
| South Bar | city | Northern | Sri Lanka | 8.97 | 79.88 | 3 | 5451 |