| Name | What | Region | Country | Lat | Long | Elev ft. | Pop est |
|---|---|---|---|---|---|---|---|
| Thudarikkulama | city | Northern | Sri Lanka | 8.70 | 80.49 | 269 | 13581 |
| Thukkuvittan | city | Eastern | Sri Lanka | 7.93 | 81.53 | 3 | 17795 |
| Thulaweliya | city | North Central | Sri Lanka | 8.52 | 80.42 | 236 | 10155 |
| Thulhiriya | city | Sabaragamuwa | Sri Lanka | 7.27 | 80.23 | 830 | 66223 |
| Thullukudi Kudiyiruppu | city | Northern | Sri Lanka | 9.08 | 79.80 | 29 | 4672 |
| Thumbara | city | Central | Sri Lanka | 7.83 | 80.60 | 964 | 32633 |
| Thumbavila | city | North Western | Sri Lanka | 7.29 | 79.93 | 39 | 102598 |
| Thumbeleruwa | city | Uva | Sri Lanka | 7.17 | 81.20 | 994 | 10492 |
| Thumbulla | city | North Western | Sri Lanka | 7.80 | 80.08 | 216 | 21181 |
| Thumbulla | city | North Western | Sri Lanka | 7.30 | 80.20 | 830 | 63232 |
| Thumbulla Nikaweratiya | city | North Western | Sri Lanka | 7.80 | 80.10 | 219 | 21861 |
| Thumbullegama | city | North Western | Sri Lanka | 7.88 | 80.27 | 383 | 20475 |
| Thummodara | city | North Western | Sri Lanka | 7.39 | 79.86 | 29 | 100032 |
| Thummodara | city | Western | Sri Lanka | 6.86 | 80.17 | 830 | 538482 |
| Thumpalai | city | Northern | Sri Lanka | 9.82 | 80.25 | 3 | 32368 |
| Thumpalanchola | city | Eastern | Sri Lanka | 7.62 | 81.50 | 213 | 23070 |
| Thumpalancholai | city | Eastern | Sri Lanka | 7.62 | 81.50 | 213 | 23070 |
| Thumpalancholai | city | Eastern | Sri Lanka | 7.62 | 81.47 | 209 | 21821 |
| Thumpankerni | city | Eastern | Sri Lanka | 7.53 | 81.72 | 101 | 21021 |
| Thumpankerni | city | Eastern | Sri Lanka | 7.48 | 81.78 | 3 | 17967 |
| Thunavy | city | Northern | Sri Lanka | 9.73 | 79.97 | 19 | 49832 |
| Thunbandahena | city | Sabaragamuwa | Sri Lanka | 6.74 | 80.30 | 337 | 48024 |
| Thundeniya | city | Central | Sri Lanka | 7.16 | 80.60 | 2637 | 96067 |
| Thunhitiyawa | city | Central | Sri Lanka | 7.06 | 80.93 | 2509 | 44244 |
| Thunmansala | city | Central | Sri Lanka | 7.11 | 80.95 | 1945 | 34571 |
| Thunnalai North | city | Northern | Sri Lanka | 9.78 | 80.20 | 3 | 71743 |
| Thunnalai South | city | Northern | Sri Lanka | 9.77 | 80.22 | 3 | 66799 |
| Thunnana West | city | Western | Sri Lanka | 6.88 | 80.08 | 830 | 446136 |
| Thunnewa | city | Uva | Sri Lanka | 7.09 | 80.97 | 1722 | 30690 |
| Thuru Sevana | city | Southern | Sri Lanka | 6.23 | 81.22 | 42 | 11703 |
| Thuttiripitiya | city | Sabaragamuwa | Sri Lanka | 6.59 | 80.48 | 830 | 56329 |
| Thuvarankerni | city | Northern | Sri Lanka | 8.90 | 79.97 | 9 | 8651 |
| Thuverunkulam | city | Northern | Sri Lanka | 8.71 | 80.52 | 341 | 15153 |