| Name | Country | Feature class | Latitude | Longitude | |
|---|---|---|---|---|---|
2501  | Lam Se Bok Huai Se Bok,Huai Sibok River,Lam Se Bok,la se bk,ลำเซบก | Thailand, Ubon Ratchathani | stream | N 15° 18′ 29'' | E 105° 6′ 39'' |
| 2502 | Nong Sawai Ta Nguan Nong Sawai Ta Ngon,Nong Sawai Ta Nguan,Nong Sawai Tanguan,hnxng sway tang wn,หนองสวายตางวน | Thailand, Buriram | pond | N 15° 7′ 31'' | E 103° 18′ 46'' |
| 2503 | Nong Sawai So Nong Sawai So,Nong Sawaiso,hnxng swaysx,หนองสวายสอ | Thailand, Buriram | pond | N 14° 52′ 38'' | E 103° 7′ 24'' |
| 2504 | Huai Sawai So Huai Sawai So,Khlong Sawai So,Khlong Swaiso River,hwy swaysx,ห้วยสวายสอ | Thailand, Nakhon Ratchasima | stream | N 14° 42′ 31'' | E 102° 24′ 50'' |
| 2505 | Map Satue Map Satu,Map Satue,mab satux,มาบสะตือ | Thailand, Nakhon Sawan | pond | N 15° 50′ 25'' | E 100° 15′ 48'' |
| 2506 | Khlong Sato Noi Khlaung Satau Noi,Khlong Sato Noi,khlxng satx nxy,คลองสะตอน้อย | Thailand, Trat | intermittent stream | N 12° 34′ 15'' | E 102° 25′ 25'' |
| 2507 | Lam Saton Huai Saton,Lam Saton,la s ton,ลำสโตน | Thailand, Sa Kaeo | stream | N 14° 1′ 49'' | E 102° 54′ 15'' |
| 2508 | Lam Sathaet Lam Lathaet,Lam Sa Thaet,Lam Sathaet,ลำสะแทต | Thailand, Buriram | stream | N 15° 26′ 13'' | E 103° 0′ 35'' |
| 2509 | Khlong Nam Sat Huai Nam Sat,Huai Nam Sāt,Khlong Nam Sat,Namsad,Namsād,khlxng na sad,คลองน้ำสาด | Thailand, Nakhon Sawan | canal | N 15° 49′ 22'' | E 100° 29′ 59'' |
| 2510 | Huai Sarika Huai Sarika,Hui Sarika River,hwy sa rika,ห้วยสาริกา | Thailand, Prachin Buri | intermittent stream | N 14° 19′ 25'' | E 101° 52′ 32'' |
| 2511 | Khlong Sarika Huai Sarika,Khlong Sarika,khlxng sa rika,คลองสาริกา | Thailand, Nakhon Nayok | stream | N 14° 16′ 33'' | E 101° 16′ 59'' |
| 2512 | Huai Sap Yang Huai Sap Yang,Khlong Sap Nok Yang,hwy sab yang,ห้วยซับยาง | Thailand, Nakhon Ratchasima | intermittent stream | N 14° 24′ 37'' | E 102° 32′ 10'' |
| 2513 | Huai Sap Yai Huai Sap Yai,Khlong Sap Yai,ห้วยซับใหญ่ | Thailand, Buriram | intermittent stream | N 14° 24′ 33'' | E 102° 37′ 59'' |
| 2514 | Huai Sap Wai Huai Sap Wai,Khlong Sap Wai,hwy sab hway,ห้วยซับหวาย | Thailand, Nakhon Ratchasima | intermittent stream | N 14° 42′ 21'' | E 102° 23′ 26'' |
| 2515 | Huai Sap Wai Huai Sap Wai,Khlong Sap Wai,hwy sab hway,ห้วยซับหวาย | Thailand, Buriram | intermittent stream | N 14° 22′ 39'' | E 102° 40′ 3'' |
| 2516 | Huai Sap Takhian Huai Sap Takhian,Hui Zab Takian River,hwy sab takheiyn,ห้วยซับตะเคียน | Thailand, Lopburi | intermittent stream | N 14° 48′ 13'' | E 100° 57′ 42'' |
| 2517 | Lam Sap Sai Chanuan Huai Sap Sai Chanuan,Lam Sap Sai Chanuan,Sab Sai Chanuan River | Thailand, | stream | N 15° 1′ 0'' | E 101° 26′ 0'' |
| 2518 | Huai Sap Sai Huai Sap Sai,Sap Sai,hwy sab si,ห้วยซับไซ | Thailand, Nakhon Ratchasima | intermittent stream | N 14° 36′ 3'' | E 102° 2′ 46'' |
| 2519 | Khlong Sip Sam Khlong Sapplap,Khlong Sip Sam,khlxng sib sam,คลองสิบสาม | Thailand, Sa Kaeo | intermittent stream | N 13° 44′ 0'' | E 102° 4′ 40'' |
| 2520 | Nong Sapphaya Beung Sanphaya,Bung Sanphaya,Nong Sapphaya | Thailand, Chai Nat | marsh(es) | N 15° 6′ 0'' | E 100° 16′ 0'' |
| 2521 | Huai Sap Noi Huai Sap Noi,Khlong Sap Noi,hwy sab nxy,ห้วยซับน้อย | Thailand, Buriram | intermittent stream | N 14° 22′ 57'' | E 102° 39′ 11'' |
| 2522 | Huai Sap Noi Huai Sap Noi,Lam Wang Saa,hwy sab nxy,ห้วยซับน้อย | Thailand, Phetchabun | stream | N 15° 50′ 32'' | E 100° 49′ 55'' |
| 2523 | Huai Sap Muang Huai Sap Muang,Hui Zab Muang,hwy sab mwng,ห้วยซับม่วง | Thailand, Lopburi | intermittent stream | N 14° 51′ 24'' | E 100° 53′ 5'' |
| 2524 | Huai Sap Muang Huai Sap Muang,Khlong Sab Muang,Khlong Sap Muang,hwy sab mwng,ห้วยซับม่วง | Thailand, Saraburi | intermittent stream | N 14° 47′ 4'' | E 101° 3′ 17'' |
| 2525 | Khlong Saphan Hin Huai Saphan Hin,Khlong Saphan Hin,khlxng saphan hin,คลองสะพานหิน | Thailand, Chanthaburi | intermittent stream | N 12° 39′ 39'' | E 102° 22′ 51'' |
| 2526 | Huai Saphan Huai Saphan,Khlong Saphan,hwy saphan,ห้วยสะพาน | Thailand, Nakhon Ratchasima | intermittent stream | N 14° 26′ 8'' | E 102° 33′ 11'' |
| 2527 | Khlong Saphan Hin Huai Sapan Hin,Khlong Saphan Hin,khlxng saphan hin,คลองสะพานหิน | Thailand, Nakhon Ratchasima | intermittent stream | N 14° 26′ 52'' | E 102° 5′ 58'' |
| 2528 | Huai Nam Sap Huai Nam Sap,Nam Sab River,hwy nasab,ห้วยน้ำซับ | Thailand, Nakhon Ratchasima | intermittent stream | N 14° 52′ 26'' | E 101° 33′ 33'' |
| 2529 | Huai Sap Huai Sap,Khlong Sap,hwy sab,ห้วยซับ | Thailand, Sa Kaeo | intermittent stream | N 13° 57′ 53'' | E 102° 33′ 13'' |
| 2530 | Khlong Sao Thong Khlong Sao Thong,Klong Sau Thong River,khlxng sea thng,คลองเสาธง | Thailand, Bangkok | canal | N 13° 30′ 32'' | E 100° 24′ 34'' |
| 2531 | Khlong Sao Rahong Khlong Sao Hong,Khlong Sao Rahong,คลองเสาระหงษ์ | Thailand, Samut Prakan | canal | N 13° 35′ 43'' | E 100° 46′ 46'' |
| 2532 | Nong Sao Diao Nong Sao Diao,Nong Sao Dieo,Nong Sao Dieo Noi,hnxng sea deiyw,หนองเสาเดียว | Thailand, Nakhon Ratchasima | pond | N 14° 49′ 14'' | E 102° 8′ 23'' |
| 2533 | Khlong Sao Khlong Chao,Khlong Sao,khlxng sea,คลองเซา | Thailand, Chanthaburi | stream | N 12° 47′ 17'' | E 101° 55′ 13'' |
| 2534 | Huai Lam Sao Huai Lam Sao,Lam Sao River,hwy lasea,ห้วยลำเสา | Thailand, Nakhon Ratchasima | stream | N 14° 54′ 17'' | E 101° 45′ 43'' |
| 2535 | Khlong San Yai Lam Khlong San Yai La,Khlong San Yai Lam,khlxng san yay ra,คลองสันยายรำ | Thailand, Chanthaburi | stream | N 12° 23′ 35'' | E 102° 14′ 2'' |
| 2536 | Nong Sanun Naung Sanun,Nong Sanun,hn xng snun,หนองสนุน | Thailand, Phichit | pond | N 16° 2′ 32'' | E 100° 14′ 2'' |
| 2537 | Nong Sanun Yai Nong Sanun,Nong Sanun Yai,หนองสนุนใหญ่ | Thailand, Nakhon Sawan | pond | N 15° 49′ 51'' | E 100° 16′ 25'' |
| 2538 | Nong Sanom Nong Sanom,Nong Sanuan,hnxng snm,หนองสนม | Thailand, Chanthaburi | pond | N 12° 37′ 27'' | E 102° 9′ 53'' |
| 2539 | Khlong Sansi Khlong Sansi,Khlong Santhri,khlxng san thriy,คลองสันทรีย์ | Thailand, Prachin Buri | canal | N 14° 3′ 3'' | E 101° 17′ 2'' |
| 2540 | Khlong San Sai Huai San Sai,Khlong San Sai,khlxng sal thray,คลองศาลทราย | Thailand, Chanthaburi | intermittent stream | N 12° 56′ 12'' | E 102° 1′ 38'' |
| 2541 | Khlong Sano Noi Khlong Sano Noi,Klong Son Noi River,khlxng son nxy,คลองโสนน้อย | Thailand, Nonthaburi | canal | N 13° 48′ 54'' | E 100° 21′ 32'' |
| 2542 | Huai Bu Sano Huai Bu Sano,Huai Sano,hwy bu son,ห้วยบุโสน | Thailand, Nakhon Ratchasima | intermittent stream | N 14° 52′ 17'' | E 101° 44′ 16'' |
| 2543 | Huai San Lang Khot Huai San Lang Khot,Lam Salang Khot,hwy san hlang khd,ห้วยสันหลังคด | Thailand, Nakhon Ratchasima | stream | N 15° 14′ 49'' | E 102° 20′ 48'' |
| 2544 | Nam Sanian Huai Sanian,Nam Sanian,na se niyn,น้ำเสนียน | Thailand, Nan | stream | N 18° 48′ 47'' | E 100° 41′ 50'' |
| 2545 | Huai Sang Hin Huai Sang Hin,Huai Som Hin,Huai Somhin River,hwy sa ng hin,ห้วยส่างหิน | Thailand, Ubon Ratchathani | intermittent stream | N 14° 59′ 10'' | E 105° 9′ 9'' |
| 2546 | Nam Sanam Chaeng Mae Nam Sanam Chaeng,Nam Sanam Chaeng,น้ำสนามแจง | Thailand, Lopburi | stream | N 15° 2′ 38'' | E 100° 33′ 52'' |
| 2547 | Khlong San Khlong San,Klong Sam River,khlxngsan,คลองสาน | Thailand, Phatthalung | stream | N 7° 38′ 16'' | E 100° 4′ 56'' |
| 2548 | Khlong Sam Wa Khlong Sam Wa,Klong Sam Wa River,khlxng sam wa,คลองสามวา | Thailand, Bangkok | canal | N 13° 48′ 41'' | E 100° 43′ 47'' |
| 2549 | Nam Samun Nam Mae Samun,Nam Samun,na smun,น้ำสมุน | Thailand, Nan | stream | N 18° 44′ 29'' | E 100° 45′ 24'' |
| 2550 | Khlong Sam Sip Khlong Sam Sip,Khlong Sip Sam,khlxng samsib,คลองสามสิบ | Thailand, Chanthaburi | intermittent stream | N 12° 53′ 55'' | E 102° 22′ 40'' |
by