| Name | Country | Feature class | Latitude | Longitude | |
|---|---|---|---|---|---|
3501  | Simaveli South | Sri Lanka, North Western Province Puttalam District > Puttalam Division > Marikkar Street | locality | N 8° 3′ 15'' | E 79° 50′ 44'' |
| 3502 | Silwatgama | Sri Lanka, North Western Province Kurunegala District > Panduwasnuwara Division > Pallegama | locality | N 7° 36′ 13'' | E 80° 2′ 56'' |
| 3503 | Silverdale | Sri Lanka, Western Province Kalutara District > Beruwala Division > Hirigalgodella | locality | N 6° 32′ 0'' | E 80° 1′ 0'' |
3504  | Silavatturai Silavatturai,Silavaturai,Silvatturai | Sri Lanka, Northern Province | populated place | N 8° 44′ 48'' | E 79° 56′ 52'' |
3505  | Sigiri Rock Sigiri Rock,Sigiriya | Sri Lanka, Central Province Matale District > Dambulla > Sigiriya | mountain elevation 363m | N 7° 57′ 25'' | E 80° 45′ 36'' |
| 3506 | Seththikulama | Sri Lanka, North Central Province Anuradhapura District > Ipalogama Division > Heenukwegama | locality | N 8° 6′ 40'' | E 80° 33′ 17'' |
| 3507 | Seruvila Seruvila,Seruvilla,Seruwawila | Sri Lanka, Eastern Province Trincomalee District > Seruvila > Seruvila | populated place | N 8° 22′ 6'' | E 81° 19′ 2'' |
| 3508 | Seruwawa | Sri Lanka, North Western Province Kurunegala District > Kurunegala Division > Seruwawa | locality | N 7° 35′ 29'' | E 80° 19′ 45'' |
| 3509 | Seruvila-Allai Sanctuary | Sri Lanka, Eastern Province | reserve | N 8° 22′ 0'' | E 81° 18′ 0'' |
| 3510 | Seruvila Allai Sanctuary | Sri Lanka, Eastern Province | reserve | N 8° 18′ 0'' | E 81° 21′ 0'' |
| 3511 | Serunewa | Sri Lanka, North Central Province Anuradhapura District > Horowupotana Division > Diyatittawewa | locality | N 8° 26′ 11'' | E 80° 55′ 55'' |
| 3512 | Serugolla | Sri Lanka, North Western Province Kurunegala District > Narammala Division > Embalapola | locality | N 7° 24′ 27'' | E 80° 15′ 21'' |
| 3513 | Sengamuwa | Sri Lanka, Eastern Province Ampara District > Pottuvil Division > Kalappukaddu | locality | N 6° 53′ 8'' | E 81° 46′ 12'' |
| 3514 | Sendiriyamulla | Sri Lanka, North Western Province Puttalam District > Dankotuwa Division > Sendiriyamulla | locality | N 7° 18′ 34'' | E 79° 56′ 11'' |
| 3515 | Senanayake Samudra Sanctuary | Sri Lanka, Uva Province | reserve | N 7° 13′ 0'' | E 81° 27′ 0'' |
| 3516 | Senanayaka Samudraya Sanctuary | Sri Lanka, Eastern Province | reserve | N 7° 9′ 37'' | E 81° 31′ 44'' |
| 3517 | Semewa | Sri Lanka, North Central Province Anuradhapura District > Medawachchiya Division > Moragoda1 | locality | N 8° 34′ 45'' | E 80° 34′ 48'' |
| 3518 | Sellankandal Forest Reserve | Sri Lanka, North Western Province | forest reserve | N 8° 1′ 51'' | E 79° 53′ 45'' |
| 3519 | Sellaka Oya Sanctuary | Sri Lanka, Eastern Province | reserve | N 7° 9′ 4'' | E 81° 32′ 21'' |
| 3520 | Sellaka Oya Sanctuary | Sri Lanka, Uva Province | reserve | N 7° 2′ 59'' | E 81° 31′ 33'' |
| 3521 | Seguwantivu | Sri Lanka, North Western Province Puttalam District > Puttalam Division > Manalthivu | locality | N 8° 4′ 48'' | E 79° 48′ 27'' |
| 3522 | Sanguthtattana Sangutatane,Sanguthtattana,Sangutthattane | Sri Lanka, North Western Province Puttalam District > Chilaw Division > Munneshwarama | populated place | N 7° 34′ 56'' | E 79° 48′ 40'' |
| 3523 | Sangilipalama Sangilipalam,Sangilipalama | Sri Lanka, Central Province Nuwara Eliya District > Kotmale Division > Rambodagama | populated place | N 7° 3′ 27'' | E 80° 40′ 57'' |
| 3524 | Sandichena | Sri Lanka, North Western Province Puttalam District > Mundel Division > Madurankuliya | locality | N 7° 54′ 26'' | E 79° 50′ 9'' |
| 3525 | Sampaturai Saint Pedro,Sampathurai,Sampaturai | Sri Lanka, Northern Province Mannar District > Mannar Town > Erukkalampiddy West | populated place | N 9° 3′ 0'' | E 79° 52′ 0'' |
| 3526 | Sambaltivu Champaitivu,Sambaltivu,Sampaltivu | Sri Lanka, Eastern Province Trincomalee District > Trincomalee Town and Gravets Division > Salli | populated place | N 8° 37′ 34'' | E 81° 12′ 45'' |
| 3527 | Sambukkulama Sambukkulam,Sambukkulama,Sambukulam | Sri Lanka, North Western Province Puttalam District > Kalpitiya Division > Ettala | populated place | N 8° 5′ 17'' | E 79° 43′ 30'' |
| 3528 | Salampakerny | Sri Lanka, Eastern Province Batticaloa District > Manmunai West > Vavunativu | locality | N 7° 40′ 58'' | E 81° 38′ 23'' |
| 3529 | Babungala Point Babungala,Babungala Point,Sabungala Point | Sri Lanka, Southern Province Galle District > Bentota Division > Habakkala | point | N 6° 22′ 0'' | E 80° 1′ 0'' |
| 3530 | Rumasala Kanda Rumasala Kanda,Rumassala Kanda,Rumaswalakanda,Rumaswalakande | Sri Lanka, Southern Province Galle District > Habaraduwa Division > Bonavistawa | hill | N 6° 0′ 59'' | E 80° 14′ 27'' |
| 3531 | Rukkattana | Sri Lanka, Uva Province Badulla District > Haldummulla Division > Kithulgahaarawa | locality | N 6° 45′ 12'' | E 80° 53′ 6'' |
| 3532 | Rukattane Rukattana,Rukattane,Rukkattana | Sri Lanka, North Western Province Kurunegala District > Narammala Division > Puskoladeniya | populated place | N 7° 20′ 35'' | E 80° 8′ 14'' |
| 3533 | Rukamputur Rugama,Rukam,Rukambutur,Rukamputur | Sri Lanka, Eastern Province Batticaloa District > Eravur Pattu > Kithul | populated place | N 7° 39′ 57'' | E 81° 29′ 25'' |
| 3534 | Rukadawewa | Sri Lanka, North Central Province Anuradhapura District > Nochchiyagama Division > Lindawewa2 | locality | N 8° 15′ 50'' | E 80° 10′ 14'' |
| 3535 | Ruhunu National Park | Sri Lanka, Southern Province Hambantota District > Thissamaharama > Kirinda | park | N 6° 25′ 0'' | E 81° 35′ 0'' |
| 3536 | Ruhunu National Park | Sri Lanka, Southern Province Hambantota District > Thissamaharama > Kirinda | park | N 6° 23′ 0'' | E 81° 30′ 0'' |
| 3537 | Ruhunu National Park | Sri Lanka, Southern Province Hambantota District > Thissamaharama > Kirinda | park | N 6° 21′ 0'' | E 81° 28′ 0'' |
| 3538 | Rubberwatta | Sri Lanka, Southern Province Hambantota District > Thissamaharama > Rubberwatta | locality | N 6° 15′ 24'' | E 81° 16′ 46'' |
| 3539 | Rotapokuna | Sri Lanka, North Central Province Anuradhapura District > Kahatagasdigiliya Divison > Samadhigama | locality | N 8° 24′ 38'' | E 80° 37′ 44'' |
| 3540 | Robalgoda Robalgoda,Robolgoda,Robolgodde | Sri Lanka, Southern Province | populated place | N 6° 24′ 52'' | E 79° 59′ 47'' |
| 3541 | Rittadeniya | Sri Lanka, North Western Province Kurunegala District > Panduwasnuwara Division > Rittadeniya | locality | N 7° 34′ 28'' | E 80° 3′ 26'' |
| 3542 | Ritigahawatta | Sri Lanka, Uva Province Moneragala District > Madulla Division > Ritigahawatta | locality | N 7° 0′ 33'' | E 81° 28′ 7'' |
| 3543 | Rilawiddawewa | Sri Lanka, North Central Province Anuradhapura District > Horowupotana Division > Gammahegewewa | locality | N 8° 30′ 51'' | E 80° 44′ 41'' |
| 3544 | Rilaulla | Sri Lanka, North Western Province Kurunegala District > Bamunakotuwa > Dampitiya | locality | N 7° 30′ 22'' | E 80° 15′ 35'' |
| 3545 | Ridiwita | Sri Lanka, Sabaragamuwa Province Ratnapura District > Godakawela Division > Ematiyagoda | locality | N 6° 31′ 43'' | E 80° 37′ 46'' |
| 3546 | Ruwalwela Reulvala,Revulvala,Ruwalwela | Sri Lanka, Uva Province Moneragala District > Madulla Division > Ruwalwela | populated place | N 7° 1′ 34'' | E 81° 23′ 9'' |
| 3547 | Relapanawa | Sri Lanka, North Central Province Anuradhapura District > Kebitigollewa Division > Wattewewa | locality | N 8° 34′ 13'' | E 80° 39′ 41'' |
| 3548 | Relapanawa | Sri Lanka, North Central Province Anuradhapura District > Medawachchiya Division > Karambankulama | locality | N 8° 30′ 25'' | E 80° 35′ 25'' |
| 3549 | Relapanawa | Sri Lanka, North Central Province Anuradhapura District > Nuwaragam Palata Central Division > Aluthgama | locality | N 8° 28′ 8'' | E 80° 21′ 6'' |
| 3550 | Rekawa | Sri Lanka, Southern Province Hambantota District > Tangalle > Rekawa West | locality | N 6° 3′ 33'' | E 80° 50′ 57'' |
by