List of Ramsar wetlands of Thailand
The List of Ramsar wetlands of Thailand comprises Thai wetlands deemed to be of "international importance" under the Ramsar Convention. For a full list of all Ramsar Sites worldwide, see the Ramsar list of wetlands of international importance.
there are 14 Ramsar sites in Thailand, totalling 399,714 hectares.
According to WWF, wetlands are one of the most threatened of all ecosystems, because of progressive loss of vegetation, salinization, excessive inundation, water pollution, invasive species, development, and road building.
| Name | Ramsar ID | Provinces | Area | Designated | Image |
| Kuan Ki Sian of the Thale Noi Non-hunting Area Wetlands | 948 | Songkhla | 4.94 | 1998-05 | |
| Bueng Khong Long Non-hunting Area | 1098 | Nong Khai | 22.14 | 2001-07-05 | |
| Don Hoi Lot | 1099 | Samut Songkhram | 875 | 2001-07-05 | |
| Krabi River Estuary | 1100 | Krabi | 212.9914 | 2001-07-05 | |
| Nong Bong Kai Non-hunting Area | 1101 | Chiang Rai | 4.34 | 2001-07-05 | |
| Princess Sirindhorn Wildlife Sanctuary | 1102 | Narathiwat | 201 | 2001-07-05 | |
| Hat Chao Mai Marine National Park - Ko Libong Non-Hunting Area - Trang River Estuaries | 1182 | Trang | 663.13 | 2002-08-14 | |
| Kaper Estuary - Laem Son National Park - Kraburi Estuary | 1183 | Ranong | 1220.46 | 2002-08-14 | |
| Mu Ko Ang Thong Marine National Park | 1184 | Surat Thani | 102 | 2002-08-14 | |
| Phang Nga Bay Marine National Park | 1185 | Phang Nga | 400 | 2002-08-14 | |
| Khao Sam Roi Yot Wetlands | - | Prachuap Khiri Khan | 18 | 2008-01-08 | |
| Bueng Kut Ting | - | Nong Khai | 2009-06-19 | ||
| Ko Kra Archipelago | 2152 | Nakhon Si Thammarat | 3.74 | 2013-08-12 | |
| Ko Ra-Ko Phra Thong Archipelago | 2153 | Phang Nga | 196.48 | 2013-08-12 | |
| Lower Songkhram River | 2420 | Nong Khai, Sakon Nakhon, Nakhon Phanom, | 55.045 | 2019-05-15 | |
| Mekong River | - | Chiang Rai | nominated | ||
| Pai River Basin | - | Mae Hong Son | nominated | ||
| Salween River Basin | - | Mae Hong Son, Tak | nominated | ||
| Upper Nan River Basin | - | Nan | nominated | ||
| Khlong Chompu Basin | - | Phitsanulok | nominated | ||
| Bung Boraphet | - | Nakhon Sawan | nominated | ||
| Mekong River | - | Loei | nominated | ||
| Lower Mun River Basin and Mekong River | - | Ubon Ratchathani | nominated | ||
| Inner Gulf of Thailand | - | Chonburi, Chachoengsao, Samut Prakan, Samut Sakhon, Samut Songkhram and Phetchaburi | nominated | ||
| Hin Krud Koh Ram Ra to Ban Klang Ao | - | Prachuap Khiri Khan | nominated | ||
| Chumphon Coast and Wetland | - | Chumphon | nominated | ||
| Ao Ban Don | - | Surat Thani | nominated | ||
| Pak Phanang Coast and Talumphuk Cape | - | Nakhon Si Thammarat | nominated | ||
| Ao Pattani | - | Pattani | nominated | ||
| Songkhla Lake and Coast | - | Songkhla and Phatthalung | nominated | ||
| Hat Thai Mueang and Northwestern Coast of Phuket | - | Phang Nga and Phuket | nominated | ||
| Trat Mangrove forest | - | Trat | nominated |