| Name | Country | Feature class | Latitude | Longitude | |
|---|---|---|---|---|---|
2351  | Siruthenkal | Sri Lanka, Eastern Province Batticaloa District > Koralai Pattu Sout > Thihiliveddai | section of estate | N 7° 50′ 1'' | E 81° 31′ 18'' |
| 2352 | Sirisanda | Sri Lanka, Western Province Colombo District > Seethawaka > Digana | rubber plantation | N 6° 54′ 43'' | E 80° 10′ 37'' |
| 2353 | Sirimedura | Sri Lanka, Western Province Colombo District > Homagama Division > Meegoda South | estate(s) | N 6° 51′ 17'' | E 80° 3′ 0'' |
| 2354 | Sirimangala | Sri Lanka, North Western Province Puttalam District > Arachchikattuwa Division > Kusala | oil palm plantation | N 7° 38′ 54'' | E 79° 48′ 23'' |
| 2355 | Sirilanda | Sri Lanka, North Western Province Kurunegala District > Bingiriya Division > Maunawa | section of estate | N 7° 35′ 9'' | E 79° 58′ 15'' |
| 2356 | Sirikandura | Sri Lanka, Southern Province Galle District > Hikkaduwa Division > Handaudumulla | estate(s) | N 6° 7′ 52'' | E 80° 8′ 48'' |
| 2357 | Sirigiriya | Sri Lanka, North Western Province Kurunegala District > Kuliyapitiya West Division > Narangalla | oil palm plantation | N 7° 27′ 34'' | E 80° 5′ 33'' |
| 2358 | Sirigampola | Sri Lanka, North Western Province Puttalam District > Nattandiya Division > Thummodara East | oil palm plantation | N 7° 22′ 20'' | E 79° 51′ 54'' |
| 2359 | Sippikulama | Sri Lanka, Southern Province Hambantota District > Hambantota Division > Samodagama | section of estate | N 6° 8′ 39'' | E 81° 7′ 5'' |
| 2360 | Sinnavattavan | Sri Lanka, Eastern Province Batticaloa District > Koralai Pattu Nort > Vattavan | section of estate | N 7° 57′ 0'' | E 81° 32′ 0'' |
| 2361 | Sinna Urani | Sri Lanka, Eastern Province Batticaloa District > Manmunai North Division > Kokkuvil | section of estate | N 7° 44′ 1'' | E 81° 40′ 1'' |
| 2362 | Sinnauppodai | Sri Lanka, Eastern Province Batticaloa District > Manmunai North Division > Thamaraikerny | section of estate | N 7° 43′ 49'' | E 81° 41′ 56'' |
| 2363 | Sinna Thotem | Sri Lanka, North Western Province Puttalam District > Mundel Division > Sameeragama | estate(s) | N 7° 52′ 57'' | E 79° 47′ 0'' |
| 2364 | Sinnasole | Sri Lanka, North Western Province Puttalam District > Mundel Division > Madurankuliya | estate(s) | N 7° 55′ 14'' | E 79° 49′ 57'' |
| 2365 | Sinnamalai | Sri Lanka, Eastern Province | triangulation station elevation 11m | N 8° 30′ 48'' | E 81° 11′ 7'' |
| 2366 | Sinkara Topu | Sri Lanka, Northern Province Kilinochchi District > Poonakary Division > Paramankerni | oil palm plantation | N 9° 32′ 6'' | E 80° 10′ 5'' |
| 2367 | Sinhalayagama | Sri Lanka, Uva Province Moneragala District > Tanamalwila Division > Mahawewa | garden(s) | N 6° 28′ 18'' | E 81° 0′ 54'' |
| 2368 | Sinhala Galkulama | Sri Lanka, North Western Province Puttalam District > Pallama Division > Kammanadaluwa | section of estate | N 7° 47′ 2'' | E 79° 58′ 23'' |
| 2369 | Sinhagiriya | Sri Lanka, North Western Province Kurunegala District > Alawwa Division > Medagampola2 | estate(s) | N 7° 19′ 0'' | E 80° 14′ 0'' |
| 2370 | Sinhagiri Vihare | Sri Lanka, North Central Province Anuradhapura District > Galnewa Division > Kandegama | temple(s) | N 7° 57′ 14'' | E 80° 29′ 33'' |
| 2371 | Singarawatte | Sri Lanka, Central Province Nuwara Eliya District > Ambagamuwa Division > Kirkoswald | estate(s) | N 6° 48′ 59'' | E 80° 40′ 42'' |
| 2372 | Bingamalakadu | Sri Lanka, Northern Province Jaffna District > Thenmaradchchi Division > Navatkuli West | section of estate | N 9° 39′ 51'' | E 80° 5′ 15'' |
| 2373 | Singakkuliya | Sri Lanka, North Western Province Puttalam District > Dankotuwa Division > Kaluwachchimulla | oil palm plantation | N 7° 18′ 2'' | E 79° 55′ 51'' |
| 2374 | Sindukandura | Sri Lanka, Southern Province Matara District > Weligama > Kotavila South | section of estate | N 5° 58′ 0'' | E 80° 29′ 0'' |
| 2375 | Silver Valley | Sri Lanka, Western Province Kalutara District > Horana Division > Godigamuwa East | oil palm plantation | N 6° 46′ 8'' | E 79° 59′ 57'' |
| 2376 | Silver Kandy | Sri Lanka, Central Province Nuwara Eliya District > Walapane > Mahakudugala | estate(s) | N 7° 1′ 51'' | E 80° 49′ 56'' |
| 2377 | Silver Hill | Sri Lanka, Central Province Matale District > Yatawatta Division > Udasgiriya | estate(s) | N 7° 31′ 57'' | E 80° 33′ 37'' |
| 2378 | Silverdale | Sri Lanka, Western Province Kalutara District > Dodangoda Division > Dodangoda East - Central | rubber plantation | N 6° 31′ 41'' | E 80° 1′ 51'' |
| 2379 | Silvatgala Vihare | Sri Lanka, Central Province Matale District > Galewela > Beliyakanda | religious site | N 7° 48′ 0'' | E 80° 34′ 0'' |
| 2380 | Silvatenna | Sri Lanka, Western Province Gampaha District > Minuwangoda Division > Balabowa | oil palm plantation | N 7° 8′ 49'' | E 80° 0′ 38'' |
| 2381 | Sheen | Sri Lanka, Central Province Nuwara Eliya District > Kotmale Division > Sheen | estate(s) | N 6° 59′ 56'' | E 80° 40′ 13'' |
| 2382 | Shannon | Sri Lanka, Central Province Nuwara Eliya District > Ambagamuwa Division > Shanon | estate(s) | N 6° 54′ 6'' | E 80° 34′ 3'' |
| 2383 | Shamrock | Sri Lanka, Central Province Kandy District > Pasbagekorale > Weligodawatta | estate(s) | N 7° 3′ 43'' | E 80° 31′ 48'' |
| 2384 | Settikadu | Sri Lanka, Northern Province Kilinochchi District > Pachchilaipallai Division > Tharmakeny | estate(s) | N 9° 34′ 21'' | E 80° 22′ 24'' |
| 2385 | Sesseruwa | Sri Lanka, North Western Province Kurunegala District > Ehetuwewa Division > Pothanegama | ruin(s) | N 7° 59′ 0'' | E 80° 25′ 0'' |
| 2386 | Seruwilagoda | Sri Lanka, Southern Province Hambantota District > Tangalle > Nalagama West | section of estate | N 6° 3′ 39'' | E 80° 46′ 47'' |
| 2387 | Serendib | Sri Lanka, Uva Province Badulla District > Hali Ela Division > Hethekma | estate(s) | N 6° 59′ 27'' | E 81° 1′ 39'' |
| 2388 | Sengelena | Sri Lanka, North Western Province Kurunegala District > Ridigama Division > Welagedara | section of estate | N 7° 28′ 32'' | E 80° 28′ 6'' |
| 2389 | Sengapadai Anicut | Sri Lanka, Eastern Province Ampara District > Sammanthurai > Malkampiddy | section of estate | N 7° 18′ 0'' | E 81° 47′ 0'' |
| 2390 | Sengakkattuwa | Sri Lanka, North Western Province Puttalam District > Mundel Division > Palasola | section of estate | N 7° 54′ 52'' | E 79° 47′ 16'' |
| 2391 | Semidale | Sri Lanka, Southern Province Matara District > Akuressa Division > Gallala | tea plantation | N 6° 4′ 0'' | E 80° 25′ 0'' |
| 2392 | Semidale | Sri Lanka, Southern Province Matara District > Akuressa Division > Nimalawa | estate(s) | N 6° 3′ 0'' | E 80° 27′ 0'' |
| 2393 | Sembukuliya | Sri Lanka, North Western Province Puttalam District > Kalpitiya Division > Nirmalapura | section of estate | N 7° 57′ 59'' | E 79° 45′ 36'' |
| 2394 | Sembukattiya | Sri Lanka, North Western Province Puttalam District > Madampe Division > Sembukattiya | oil palm plantation | N 7° 31′ 9'' | E 79° 50′ 57'' |
| 2395 | Sembigewewa | Sri Lanka, North Central Province Anuradhapura District > Galenbidunuwewa > Parakum Muriyakadawala | section of estate | N 8° 15′ 0'' | E 80° 40′ 0'' |
| 2396 | Sellakataragama | Sri Lanka, Uva Province Moneragala District > Katharagama > Karavile | section of estate | N 6° 26′ 0'' | E 81° 18′ 0'' |
| 2397 | Selkirk | Sri Lanka, North Western Province Kurunegala District > Udubaddawa Division > Mahaagara | section of estate | N 7° 28′ 17'' | E 79° 57′ 41'' |
| 2398 | Seetakotuwa Ruins | Sri Lanka, Central Province Kandy District > Minipe > Gurulupotha | ruin(s) | N 7° 21′ 0'' | E 80° 56′ 0'' |
| 2399 | Seerangodagama | Sri Lanka, North Western Province Kurunegala District > Maho > Kumbukwewa4 | garden(s) | N 7° 47′ 0'' | E 80° 14′ 0'' |
| 2400 | Seenukkuwa | Sri Lanka, Uva Province Moneragala District > Tanamalwila Division > Seenukkuwa | section of estate | N 6° 20′ 45'' | E 81° 15′ 8'' |
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