| Official Name: | Si Sawat |
| Native Name: | ศรีสวัสดิ์ |
| Native Name Lang: | th |
| Settlement Type: | District |
| Subdivision Type: | Country |
| Subdivision Name: | Thailand |
| Subdivision Type1: | Province |
| Subdivision Name1: | Kanchanaburi |
| Subdivision Type2: | Seat |
| Subdivision Name2: | Dan Mae Chalaep |
| Subdivision Type3: | Tambon |
| Subdivision Type4: | Muban |
| Established Title: | District established |
| Population Total: | 25,667 |
| Population As Of: | 2017 |
| Population Density Km2: | auto |
| Blank Name Sec1: | Postal code |
| Blank Info Sec1: | 71250 |
| Blank Name Sec2: | Geocode |
| Blank Info Sec2: | 7104 |
| Timezone: | ICT |
| Utc Offset: | +7 |
| Coordinates: | 14.5992°N 99.1139°W |
Si Sawat (Thai: ศรีสวัสดิ์, in Thai pronounced as /sǐː sā.wàt/) is a district (amphoe) in Kanchanaburi province, western Thailand.
Neighboring districts are (from the north clockwise) Ban Rai of Uthai Thani province, Dan Chang of Suphanburi province, Nong Prue, Bo Phloi, Kanchanaburi, Sai Yok and Thong Pha Phum of Kanchanburi Province.
The district is dominated by the Si Nakharin Reservoir, which is part of Khuean Srinagarindra National Park. The 140-metre-high Si Nakharin Dam was finished in 1980 and creates a 419 km2 impoundment of the Kwae Yai River. The dam has received criticism for being built on the Si Sawat fault line.[1]
To the south of the district is Erawan National Park, best known for its Erawan Waterfall.
The district is divided into six sub-districts (tambons), which are further subdivided into 33 villages (mubans). The township (thesaban tambon) Erawan covers parts of tambon Tha Kradan. There are a further six tambon administrative organizations (TAO).
| No. | Name | Thai name | Pop.[2] | |||
|---|---|---|---|---|---|---|
| 1. | Na Suan | นาสวน | 4,769 | |||
| 2. | Dan Mae Chalaep | ด่านแม่แฉลบ | 5,003 | |||
| 3. | Nong Pet | หนองเป็ด | 2,593 | |||
| 4. | Tha Kradan | ท่ากระดาน | 5,085 | |||
| 5. | Khao Chot | เขาโจด | 4,364 | |||
| 6. | Mae Krabung | แม่กระบุง | 3,857 |