Lahan Sai district
Lahan Sai 
    ละหานทราย  | |
|---|---|
District location in Buriram province  | |
| Coordinates: 14°24′42″N 102°51′36″E / 14.41167°N 102.86000°E | |
| Country | Thailand | 
| Province | Buriram | 
| Area | |
 • Total  | 735.0 km2 (283.8 sq mi) | 
| Population  (2008)  | |
 • Total  | 70,825 | 
| • Density | 96.4/km2 (250/sq mi) | 
| Time zone | UTC+7 (ICT) | 
| Postal code | 31170 | 
| Geocode | 3106 | 
Lahan Sai (Thai: ละหานทราย, pronounced [lā.hǎːn sāːj]; Northeastern Thai: ละหานทราย, pronounced [lā.hǎːn sâːj]) is a district (amphoe) in the southern part of Buriram province, northeastern Thailand.