San Kamphaeng (Thai: สันกำแพง, pronounced [sǎn kām.pʰɛ̄ːŋ]; Northern Thai: สันก่ำแปง, pronounced [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.

The district is divided into 10 sub-districts (tambons), which are further subdivided into 100 villages (mubans).

This Chiang Mai province location article is a stub.