Phen
เพ็ญ | |
|---|---|
 District location in Udon Thani province | |
| Coordinates: 17°41′43″N 102°54′26″E / 17.69528°N 102.90722°E | |
| Country | Thailand |
| Province | Udon Thani |
| Area | |
• Total | 908.089 km2 (350.615 sq mi) |
| Population (2005) | |
• Total | 110,190 |
| • Density | 121.3/km2 (314/sq mi) |
| Time zone | UTC+7 (ICT) |
| Postal code | 41150 |
| Geocode | 4119 |
Phen (Thai: เพ็ญ, pronounced [pʰēn]) is a district (amphoe) in the northern part of Udon Thani province, Isan, Thailand.