Sam Ngao district
Sam Ngao 
    สามเงา  | |
|---|---|
District location in Tak province  | |
| Coordinates: 17°14′36″N 99°1′21″E / 17.24333°N 99.02250°E | |
| Country | Thailand | 
| Province | Tak | 
| Seat | Sam Ngao | 
| Area | |
 • Total  | 2,771.927 km2 (1,070.247 sq mi) | 
| Population  (2007)  | |
 • Total  | 32,483 | 
| • Density | 11.7/km2 (30/sq mi) | 
| Time zone | UTC+7 (ICT) | 
| Postal code | 63130 | 
| Geocode | 6303 | 
Sam Ngao (Thai: สามเงา, pronounced [sǎːm ŋāw]) with Tha Song Yang district is the northernmost district (amphoe) of Tak province, western Thailand.