Wan Yai
หว้านใหญ่ | |
|---|---|
.jpg) Our Lady of the Martyrs of Thailand Shrine at Pong Kham | |
 District location in Mukdahan province | |
| Coordinates: 16°43′39″N 104°44′20″E / 16.72750°N 104.73889°E | |
| Country |  Thailand |
| Province | Mukdahan |
| Seat | Wan Yai |
| Area | |
| • Total | 84.48 km2 (32.62 sq mi) |
| Population (2005) | |
| • Total | 18,683 |
| • Density | 221.2/km2 (573/sq mi) |
| Time zone | UTC+7 (ICT) |
| Postal code | 49150 |
| Geocode | 4906 |
Wan Yai (Thai: หว้านใหญ่, pronounced [wâːn jàj]; Northeastern Thai: หว้านใหญ่, pronounced [wàːn ɲāj]) is a district (amphoe) of Mukdahan province, northeastern Thailand.