| Name | What | Region | Country | Lat | Long | Elev ft. | Pop est |
|---|---|---|---|---|---|---|---|
| Sinapitiya | city | Central | Sri Lanka | 7.17 | 80.55 | 2037 | 112637 |
| Sindathiri | city | North Western | Sri Lanka | 7.28 | 79.85 | 6 | 157751 |
| Sindattiriya | city | North Western | Sri Lanka | 7.28 | 79.85 | 6 | 157751 |
| Sindurankanda | city | Central | Sri Lanka | 7.24 | 80.55 | 1991 | 183361 |
| Singagoda | city | Sabaragamuwa | Sri Lanka | 7.26 | 80.40 | 849 | 94107 |
| Singahagoda | city | Sabaragamuwa | Sri Lanka | 7.26 | 80.40 | 849 | 94107 |
| Singakkuliya | city | North Western | Sri Lanka | 7.30 | 79.94 | 91 | 82237 |
| Singandaluwa | city | North Western | Sri Lanka | 7.73 | 80.03 | 134 | 26529 |
| Singappulikanda | city | Sabaragamuwa | Sri Lanka | 6.63 | 80.49 | 1112 | 62745 |
| Singhagama | city | Western | Sri Lanka | 6.49 | 80.03 | 180 | 158736 |
| Singhajayagama | city | North Western | Sri Lanka | 7.40 | 80.00 | 118 | 52858 |
| Singhapitiya | city | Central | Sri Lanka | 7.17 | 80.55 | 2037 | 119920 |
| Singhapura | city | Western | Sri Lanka | 6.64 | 80.03 | 232 | 158428 |
| Singhapura | city | Southern | Sri Lanka | 6.28 | 81.21 | 127 | 11280 |
| Singharagama | city | North Western | Sri Lanka | 7.87 | 80.25 | 370 | 20323 |
| Singharaja Udyanaya | city | Western | Sri Lanka | 6.40 | 80.29 | 830 | 22816 |
| Singharamulla | city | Western | Sri Lanka | 6.95 | 79.91 | 36 | 331092 |
| Singhaya Ulpota | city | North Central | Sri Lanka | 8.75 | 80.75 | 239 | 5116 |
| Singiliarapattai | city | Eastern | Sri Lanka | 7.28 | 81.60 | 347 | 15171 |
| Singillarapatt | city | Eastern | Sri Lanka | 7.28 | 81.60 | 347 | 15171 |
| Sinha Udagama | city | North Central | Sri Lanka | 7.95 | 80.95 | 285 | 16707 |
| Sinhala Etawirawewa | city | North Central | Sri Lanka | 8.64 | 80.72 | 305 | 4193 |
| Sinhala Ihalagama | city | North Western | Sri Lanka | 7.81 | 80.00 | 187 | 18429 |
| Sinhala Kallanchiya | city | North Western | Sri Lanka | 7.75 | 80.01 | 141 | 23771 |
| Sinhala Mudunduwa | city | North Western | Sri Lanka | 7.54 | 80.46 | 830 | 48569 |
| Sinhalagoda | city | Sabaragamuwa | Sri Lanka | 6.68 | 80.30 | 830 | 32588 |
| Sinhalavadi | city | Eastern | Sri Lanka | 7.71 | 81.69 | 6 | 27821 |
| Sinhapitiya | city | Central | Sri Lanka | 7.17 | 80.55 | 2037 | 119920 |
| Sinharagama | city | North Central | Sri Lanka | 8.28 | 80.24 | 318 | 8091 |
| Sinharagama | city | North Western | Sri Lanka | 7.87 | 80.25 | 370 | 20323 |
| Sinharagama | city | Central | Sri Lanka | 7.25 | 80.71 | 1889 | 133019 |
| Sinharaja Aranyaya | city | Southern | Sri Lanka | 6.40 | 80.39 | 1112 | 19992 |
| Sinharamolla | city | Western | Sri Lanka | 6.95 | 79.91 | 36 | 331092 |
| Sinharamulla | city | Western | Sri Lanka | 6.95 | 79.91 | 36 | 331092 |
| Sinhaya Ulpota | city | North Central | Sri Lanka | 8.75 | 80.75 | 239 | 5116 |
| Sinigama | city | Southern | Sri Lanka | 6.16 | 80.09 | 3 | 77629 |
| Sinimodara | city | Southern | Sri Lanka | 6.00 | 80.75 | 3 | 37641 |
| Sinimodera | city | Southern | Sri Lanka | 6.00 | 80.75 | 3 | 37641 |
| Sinimunna | city | Southern | Sri Lanka | 6.34 | 81.22 | 160 | 9258 |
| Sinna Aiyamperumal | city | Northern | Sri Lanka | 9.12 | 80.33 | 104 | 6109 |
| Sinna Alyamperumal | city | Northern | Sri Lanka | 9.12 | 80.33 | 104 | 6109 |
| Sinna Arasankulam | city | Northern | Sri Lanka | 8.85 | 80.37 | 252 | 8793 |
| Sinna Attimoddai | city | Northern | Sri Lanka | 8.80 | 80.03 | 45 | 9536 |
| Sinna Attimoddai | city | Northern | Sri Lanka | 8.80 | 80.05 | 52 | 9536 |
| Sinna Chembukuliya | city | North Western | Sri Lanka | 7.79 | 79.83 | 22 | 20146 |
| Sinna Karachchi | city | Eastern | Sri Lanka | 8.80 | 81.09 | 3 | 8187 |
| Sinna Kattakaduwa | city | North Western | Sri Lanka | 7.88 | 79.91 | 154 | 14228 |
| Sinna Kayankerni | city | Eastern | Sri Lanka | 7.98 | 81.53 | 0 | 10934 |
| Sinna Naga Villu | city | North Western | Sri Lanka | 8.24 | 79.83 | 124 | 2171 |
| Sinna Ottapanai | city | North Western | Sri Lanka | 7.81 | 79.79 | 16 | 17255 |
| Sinna Pulaweli | city | Eastern | Sri Lanka | 7.57 | 81.41 | 298 | 16014 |
| Sinna-adampan | city | Northern | Sri Lanka | 9.05 | 80.56 | 242 | 7941 |
| Sinnacharigama | city | North Western | Sri Lanka | 7.91 | 80.31 | 360 | 19336 |
| Sinnachariyagama | city | North Western | Sri Lanka | 7.91 | 80.31 | 360 | 19336 |
| Sinnadampan | city | Northern | Sri Lanka | 9.05 | 80.56 | 242 | 7941 |
| Sinnaittimadu | city | Northern | Sri Lanka | 9.16 | 80.68 | 98 | 6109 |
| Sinnakinniya | city | Eastern | Sri Lanka | 8.49 | 81.19 | 13 | 16331 |
| Sinnakinniyai | city | Eastern | Sri Lanka | 8.49 | 81.19 | 13 | 16331 |
| Sinnakkomarasankulam | city | Northern | Sri Lanka | 8.70 | 80.52 | 308 | 13543 |
| Sinnakkulam | city | Northern | Sri Lanka | 8.87 | 80.51 | 298 | 8074 |
| Sinnakoramoddai | city | Northern | Sri Lanka | 8.97 | 80.64 | 232 | 8046 |
| Sinnakudirippu | city | North Western | Sri Lanka | 8.23 | 79.76 | 6 | 17250 |
| Sinnakulam | city | Northern | Sri Lanka | 8.67 | 80.51 | 275 | 10431 |
| Sinnakulam | city | Northern | Sri Lanka | 8.71 | 80.43 | 226 | 9207 |
| Sinnakulama | city | Northern | Sri Lanka | 8.67 | 80.51 | 275 | 10431 |
| Sinnakunchukkulam | city | Northern | Sri Lanka | 8.74 | 80.15 | 121 | 9393 |
| Sinnamailankulam | city | Northern | Sri Lanka | 8.71 | 80.53 | 347 | 14579 |
| Sinnanochchikulam | city | Northern | Sri Lanka | 8.76 | 79.95 | 19 | 5512 |
| Sinnapadu | city | North Western | Sri Lanka | 7.85 | 79.77 | 0 | 20108 |
| Sinnapillumalai | city | Eastern | Sri Lanka | 7.69 | 81.52 | 170 | 23095 |
| Sinnapoovarasankulam | city | Northern | Sri Lanka | 8.99 | 80.59 | 259 | 8046 |
| Sinnappoovarasankulam | city | Northern | Sri Lanka | 8.99 | 80.59 | 259 | 8046 |
| Sinnappuliyankulam | city | Northern | Sri Lanka | 8.66 | 80.37 | 226 | 8344 |
| Sinnappullumalai | city | Eastern | Sri Lanka | 7.69 | 81.52 | 170 | 23095 |
| Sinnapputukkulam | city | Northern | Sri Lanka | 8.75 | 80.52 | 311 | 23276 |
| Sinnapullaichchipotkeni | city | Northern | Sri Lanka | 8.77 | 79.99 | 16 | 9119 |
| Sinnapullumalai | city | Eastern | Sri Lanka | 7.69 | 81.52 | 170 | 23095 |
| Sinnasembukuliya | city | North Western | Sri Lanka | 7.79 | 79.83 | 22 | 20146 |
| Sinnathottam | city | Eastern | Sri Lanka | 7.70 | 81.59 | 118 | 18156 |
| Sinnaththampanai | city | Northern | Sri Lanka | 8.65 | 80.38 | 262 | 8538 |
| Sinnaththanpanai | city | Northern | Sri Lanka | 8.65 | 80.38 | 262 | 8538 |
| Sinnativu | city | Northern | Sri Lanka | 9.27 | 80.00 | 3 | 611 |
| Sinnavilupattiya | city | North Central | Sri Lanka | 8.00 | 81.10 | 98 | 20979 |
| Sinnawilupattiya | city | North Central | Sri Lanka | 8.00 | 81.10 | 98 | 20979 |
| Sinny Kulam | city | North Central | Sri Lanka | 8.27 | 80.36 | 374 | 32258 |
| Sinuggala | city | Uva | Sri Lanka | 6.51 | 80.87 | 383 | 9196 |