| Official Name: | Wiang Haeng |
| Native Name: | เวียงแหง |
| Settlement Type: | District |
| Subdivision Type: | Country |
| Subdivision Name: | Thailand |
| Subdivision Type1: | Province |
| Subdivision Name1: | Chiang Mai |
| Subdivision Type2: | Seat |
| Subdivision Name2: | Mueang Haeng |
| Subdivision Type3: | Tambon |
| Subdivision Type4: | Muban |
| Established Title: | District established |
| Population Total: | 28876 |
| Population As Of: | 2005 |
| Blank Name Sec1: | Postal code |
| Blank Info Sec1: | 50350 |
| Blank Name Sec2: | Geocode |
| Blank Info Sec2: | 5020 |
| Timezone: | ICT |
| Utc Offset: | +7 |
| Coordinates: | 19.5594°N 98.6356°W |
Wiang Haeng (Thai: เวียงแหง, in Thai pronounced as /wīa̯ŋ hɛ̌ːŋ/) is a district (amphoe) in the northern part of Chiang Mai province, northern Thailand.
The area of tambon Wiang was very far from Chiang Dao district center. The government separated Tambon Mueang Haeng and Piang Luang to create a minor district (king amphoe) on 5 May 1981.[1] It was upgraded to a full district on 4 November 1993.[2]
Wiang Haeng is believed to be the place where King Naresuan died in 1605 when he and his army went to war with Ava. At present, there are many archaeological sites that are believed to be built to commemorate him. But the place of his death remains a controversy in Thai history.[3]
Neighboring districts are (from the northeast clockwise) Chiang Dao of Chiang Mai Province, Pai of Mae Hong Son province and Shan State of Myanmar.
The source of the Taeng River lies in the mountains of the Daen Lao Range in the north of the district.
The district is divided into three sub-districts (tambon), which are further subdivided into 26 villages (muban). There are no municipal (thesaban) areas, and three tambon administrative organizations (TAO).
| No. | Name | Thai name | Villages | Pop. | ||
|---|---|---|---|---|---|---|
| 1. | Mueang Haeng | เมืองแหง | 12 | 8,631 | ||
| 2. | Piang Luang | เปียงหลวง | 9 | 16,757 | ||
| 3. | Saen Hai | แสนไห | 5 | 3,488 |