| Official Name: | Mueang Chiang Rai |
| Native Name: | เมืองเชียงราย |
| Native Name Lang: | th |
| Settlement Type: | District |
| Subdivision Type: | Country |
| Subdivision Name: | Thailand |
| Subdivision Type1: | Province |
| Subdivision Name1: | Chiang Rai |
| Subdivision Type2: | Seat |
| Subdivision Type3: | Tambon |
| Subdivision Type4: | Muban |
| Established Title: | District established |
| Population Total: | 227142 |
| Population As Of: | 2005 |
| Blank Name Sec1: | Postal code |
| Blank Info Sec1: | 57000 |
| Blank Name Sec2: | Geocode |
| Blank Info Sec2: | 5701 |
| Timezone: | ICT |
| Utc Offset: | +7 |
| Coordinates: | 19.9086°N 99.8325°W |
Mueang Chiang Rai (Thai: เมืองเชียงราย, in Thai pronounced as /mɯ̄aŋ tɕʰīaŋ rāːj/; [[File:Lanna-Mueang_Chiang_Rai.png|80px]] เมืองเจียงฮาย, pronounced as /mɯ̄aŋ tɕīaŋ hāːj/) is the capital district (amphoe mueang) of Chiang Rai province, northern Thailand.
Neighboring districts are (from the northwest clockwise) Mae Fa Luang, Mae Chan, Wiang Chiang Rung, Wiang Chai, Thoeng, Pa Daet, Phan, Mae Lao, Mae Suai of Chiang Rai Province and Mae Ai of Chiang Mai province.
The Phi Pan Nam Mountains dominate the landscape of the southern side of the district. The Kok River is an important water resource.
The district is divided into 16 subdistricts (tambons), which are further subdivided into 256 villages (mubans). The city (thesaban nakhon) Chiang Rai covers tambon Wiang and parts of Rop Wiang, San Sai, and Rim Kok. The township (thesaban tambon) San Sai covers parts of tambons San Sai, and Ban Du tambon Ban Du. There are a further 14 tambon administrative organizations (TAO).
| No. | Subdistrict Name | Northern Thai Name | Thai Name | Villages | Houses | Population[1] | |
|---|---|---|---|---|---|---|---|
| 1. | Wiang | เวียง | - | 8,015 | 11,371 | ||
| 2. | Rop Wiang | รอบเวียง | 7 | 25,300 | 48,930 | ||
| 3. | Ban Du | บ้านดู่ | 19 | 86,49 | 16,062 | ||
| 4. | Nang Lae | นางแล | 14 | 4,309 | 10,271 | ||
| 5. | Mae Khao Tom | แม่ข้าวต้ม | 23 | 4,596 | 11,916 | ||
| 6. | Mae Yao | แม่ยาว | 18 | 7,634 | 17,746 | ||
| 7. | San Sai | สันทราย | 11 | 4,863 | 9,469 | ||
| 8. | Mae Kon | แม่กรณ์ | 13 | 2,732 | 6,207 | ||
| 9. | Huai Chomphu | ห้วยชมภู | 11 | 3,986 | 10,567 | ||
| 10. | Huai Sak | ห้วยสัก | 30 | 6,844 | 17,235 | ||
| 11. | Rim Kok | ริมกก | 11 | 8,132 | 17,383 | ||
| 12. | Doi Lan | ดอยลาน | 20 | 3,761 | 10,452 | ||
| 13. | Pa O Don Chai | ป่าอ้อดอนชัย | 21 | 4,107 | 10,049 | ||
| 14. | Tha Sai | ท่าสาย | 13 | 4,017 | 8,736 | ||
| 15. | Doi Hang | ดอยฮาง | 8 | 1,874 | 4,401 | ||
| 16. | Tha Sut | ท่าสุด | 11 | 4,616 | 12,930 |