Wiang Sa
เวียงสา | |
|---|---|
 District location in Nan province | |
| Coordinates: 18°35′54″N 100°44′24″E / 18.59833°N 100.74000°E | |
| Country | Thailand |
| Province | Nan |
| Government | |
| • Chief District Officer | Jatuporn Chanasri |
| Area | |
| • Total | 1,894.893 km2 (731.622 sq mi) |
| Population (2015) | |
| • Total | 70,895 |
| • Density | 37/km2 (97/sq mi) |
| Time zone | UTC+7 (ICT) |
| Postal code | 55110 |
| Geocode | 5507 |
Wiang Sa (Thai: เวียงสา, pronounced [wīa̯ŋ sǎː]) is a district (amphoe) in the central part of Nan province, northern Thailand.