| Official Name: | Thung Chang |
| Native Name: | ทุ่งช้าง |
| Native Name Lang: | th |
| Settlement Type: | District |
| Subdivision Type: | Country |
| Subdivision Name: | Thailand |
| Subdivision Type1: | Province |
| Subdivision Name1: | Nan |
| Established Title: | District established |
| Population Total: | 18375 |
| Population As Of: | 2013 |
| Population Density Km2: | auto |
| Leader Title: | District officer |
| Leader Name: | Kiansak Pomthongkham |
| Blank Name Sec1: | Postal code |
| Blank Info Sec1: | 55130 |
| Blank Name Sec2: | Geocode |
| Blank Info Sec2: | 5508 |
| Timezone: | ICT |
| Utc Offset: | +7 |
| Coordinates: | 19.3872°N 100.8758°W |
Thung Chang (Thai: ทุ่งช้าง, in Thai pronounced as /tʰûŋ tɕʰáːŋ/; โต้งจ๊าง, pronounced as /tôːŋ tɕáːŋ/) is a district (amphoe) in the northern part of Nan province, northern Thailand.
Thung Chang District dates back to the Khwaeng Khun Nan (ขุนน่าน), which was converted into the district Lae (และ) in 1914. In 1961 it was renamed Thung Chang, as the district office had been moved to tambon Thung Chang.[1] [2]
Neighboring districts are, from the east clockwise, Chaloem Phra Kiat, Pua, Chiang Klang and Song Khwae of Nan Province. To the north is Xaignabouli of Laos.
The eastern part of the district is in the Luang Prabang Range of the Thai highlands.[3]
Thung Chang is divided into four sub-districts (tambons), which are further subdivided into 40 administrative villages (mubans).
| No. | Name | Thai | Villages | Pop.[4] | |
|---|---|---|---|---|---|
| 1. | Pon | Thai: ปอน | 8 | 2,761 | |
| 2. | Ngop | Thai: งอบ | 11 | 5,551 | |
| 3. | Lae | Thai: และ | 14 | 4,642 | |
| 4. | Thung Chang | Thai: ทุ่งช้าง | 7 | 5,421 |
There are two sub-district municipalities (thesaban tambons) in the district:
There are three sub-district administrative organizations (SAO) in the district: