| Official Name: | San Kamphaeng |
| Native Name: | สันกำแพง |
| Native Name Lang: | th |
| Settlement Type: | District |
| Subdivision Type: | Country |
| Subdivision Name: | Thailand |
| Subdivision Type1: | Province |
| Subdivision Name1: | Chiang Mai |
| Subdivision Type2: | Seat |
| Subdivision Type3: | Tambon |
| Subdivision Type4: | Muban |
| Established Title: | District established |
| Population Total: | 73,721 |
| Population As Of: | 2005 |
| Blank Name Sec1: | Postal code |
| Blank Info Sec1: | 50130 |
| Blank Name Sec2: | Geocode |
| Blank Info Sec2: | 5013 |
| Timezone: | ICT |
| Utc Offset: | +7 |
| Coordinates: | 18.7453°N 99.1203°W |
San Kamphaeng (in Thai pronounced as /sǎn kām.pʰɛ̄ːŋ/; สันก่ำแปง, pronounced as /sǎn kàm.pɛ̄ːŋ/) is a district (amphoe) of Chiang Mai province in northern Thailand.
San Kamphaeng borders the districts (from west clockwise) Saraphi, Mueang Chiang Mai, San Sai, Doi Saket, Mae On of Chiang Mai Province and Ban Thi of Lamphun province.
The district dates back to khwaeng Mae Om, which was established in 1902. In 1923 the district was renamed San Kamphaeng.
The district is divided into 10 sub-districts (tambons), which are further subdivided into 100 villages (mubans). There are two townships (thesaban tambons). San Kamphaeng covers parts of tambons San Kamphaeng and Chae Chang, and the entire tambon Sai Mun. Ton Pao covers the entire tambon of Ton Pao. There are a further eight tambon administrative organizations (TAO).
| No. | Name | Thai name | Villages | Pop. | ||
|---|---|---|---|---|---|---|
| 1. | San Kamphaeng | สันกำแพง | 14 | 13,686 | ||
| 2. | Sai Mun | ทรายมูล | 7 | 4,230 | ||
| 3. | Rong Wua Daeng | ร้องวัวแดง | 11 | 5,718 | ||
| 4. | Buak Khang | บวกค้าง | 13 | 7,851 | ||
| 5. | Chae Chang | แช่ช้าง | 9 | 7,585 | ||
| 6. | On Tai | ออนใต้ | 11 | 5,371 | ||
| 10. | Mae Pu Kha | แม่ปูคา | 9 | 5,969 | ||
| 11. | Huai Sai | ห้วยทราย | 8 | 6,217 | ||
| 12. | Ton Pao | ต้นเปา | 10 | 11,006 | ||
| 13. | San Klang | สันกลาง | 8 | 6,088 |