Phaya Mengrai district
Phaya Mengrai 
    พญาเม็งราย  | |
|---|---|
Chedi, Phaya Mengrai  | |
District location in Chiang Rai province  | |
| Coordinates: 19°50′56″N 100°9′13″E / 19.84889°N 100.15361°E | |
| Country | Thailand | 
| Province | Chiang Rai | 
| Seat | Mengrai | 
| Area | |
 • Total  | 620.0 km2 (239.4 sq mi) | 
| Population  (2005)  | |
 • Total  | 41,972 | 
| • Density | 67.7/km2 (175/sq mi) | 
| Time zone | UTC+7 (ICT) | 
| Postal code | 57290 | 
| Geocode | 5712 | 
Phaya Mengrai (Thai: พญาเม็งราย, pronounced [pʰā.jāː mēŋ.rāːj]; Northern Thai: พญามังฮาย, pronounced [pʰā.ɲāː māŋ.hāːj]) is a district (amphoe) of Chiang Rai province, northern Thailand.