| Official Name: | Mueang Nan |
| Native Name: | เมืองน่าน |
| Native Name Lang: | th |
| Settlement Type: | District |
| Subdivision Type: | Country |
| Subdivision Name: | Thailand |
| Subdivision Type1: | Province |
| Subdivision Name1: | Nan |
| Population Total: | 81481 |
| Population As Of: | 2010 |
| Population Density Km2: | auto |
| Leader Title: | Marshal |
| Leader Name: | Winai Sitthimonton |
| Blank Name Sec1: | Postal code |
| Blank Info Sec1: | 55000 |
| Blank Name Sec2: | Geocode |
| Blank Info Sec2: | 5501 |
| Timezone: | ICT |
| Utc Offset: | +7 |
| Coordinates: | 18.7936°N 100.7294°W |
Mueang Nan (in Thai pronounced as /mɯ̄a̯ŋ nâːn/) is the capital district (amphoe mueang) of Nan province, northern Thailand.
The district was Khwaeng Nakhon Nan, set up in 1899 by the Ministry of Interior. It was renamed Mueang Nan District in 1917.[1] Khun Yommana Nattikan was the first district officer.
Neighboring districts are from the north clockwise Tha Wang Pha, Santi Suk, Phu Phiang, Wiang Sa, Ban Luang of Nan Province and Pong of Phayao province.
The district is divided into 11 sub-districts (tambons), which are further subdivided into 107 villages (mubans). Nan is a town (thesaban mueang) and covers the complete tambon Nai Wiang and parts of tambon Pha Sing. There are also two townships (thesaban tambon), Du Tai and Kong Khwai, which cover the complete tambon Du Tai and Kong Khwai, respectively. The other eight tambons are tambon administrative organizations (TAO).
| No. | Name | Thai | Villages | Pop.[2] | |
|---|---|---|---|---|---|
| 1. | Nai Wiang | ในเวียง | - | 19,684 | |
| 2. | Bo | บ่อ | 10 | 4,393 | |
| 3. | Pha Sing | ผาสิงห์ | 9 | 6,144 | |
| 4. | Chai Sathan | ไชยสถาน | 11 | 7,106 | |
| 5. | Thuem Tong | ถืมตอง | 8 | 3,336 | |
| 6. | Rueang | เรือง | 8 | 4,853 | |
| 7. | Na Sao | นาซาว | 6 | 3,578 | |
| 8. | Du Tai | ดู่ใต้ | 15 | 8,456 | |
| 9. | Kong Khwai | กองควาย | 12 | 5,549 | |
| 16. | Bo Suak[3] | บ่อสวก | 13 | 6,546 | |
| 17. | Sanian | สะเนียน | 15 | 11,836 |