Benchalak district
Benchalak 
    เบญจลักษ์  | |
|---|---|
District location in Sisaket province  | |
| Coordinates: 14°47′42″N 104°40′12″E / 14.79500°N 104.67000°E | |
| Country | Thailand | 
| Province | Sisaket | 
| Seat | Siao | 
| Area | |
 • Total  | 331.3 km2 (127.9 sq mi) | 
| Population  (2005)  | |
 • Total  | 35,807 | 
| • Density | 108.1/km2 (280/sq mi) | 
| Time zone | UTC+7 (ICT) | 
| Postal code | 33110 | 
| Geocode | 3319 | 
Benchalak (Thai: เบญจลักษ์, pronounced [bēn.t͡ɕā.lák]) is a district (amphoe) of Sisaket province, northeastern Thailand.