Den Chai district
Den Chai 
    เด่นชัย  | |
|---|---|
Den Chai Railway Station in 2020  | |
District location in Phrae province  | |
| Coordinates: 17°58′43″N 100°3′31″E / 17.97861°N 100.05861°E | |
| Country | Thailand | 
| Province | Phrae | 
| Seat | Den Chai | 
| Area | |
 • Total  | 265.6 km2 (102.5 sq mi) | 
| Population  (2005)  | |
 • Total  | 37,440 | 
| • Density | 141.0/km2 (365/sq mi) | 
| Time zone | UTC+7 (ICT) | 
| Postal code | 54140 | 
| Geocode | 5405 | 
Den Chai (Thai: เด่นชัย, pronounced [dèn tɕʰāj]; Northern Thai: เด่นจัย, pronounced [dèn tɕāj]) is a district (amphoe) in the southern part of Phrae province, northern Thailand.