Si Satchanalai district
Si Satchanalai 
    ศรีสัชนาลัย  | |
|---|---|
Sunset at Yom River, Si Satchanalai  | |
District location in Sukhothai province  | |
| Coordinates: 17°31′2″N 99°45′37″E / 17.51722°N 99.76028°E | |
| Country | Thailand | 
| Province | Sukhothai | 
| Seat | Hat Siao | 
| Area | |
 • Total  | 2,050.511 km2 (791.707 sq mi) | 
| Population  (2005)  | |
 • Total  | 95,198 | 
| • Density | 46.4/km2 (120/sq mi) | 
| Time zone | UTC+7 (ICT) | 
| Postal code | 64130 | 
| Geocode | 6405 | 
Si Satchanalai (Thai: ศรีสัชนาลัย, pronounced [sǐː sàt.tɕʰā.nāː.lāj]) is the northernmost district (amphoe) of Sukhothai province, in the lower northern region of Thailand. Si may also be transliterated as Sri.