Mae Chaem (Thai: แม่แจ่ม, pronounced [mɛ̂ː t͡ɕɛ̀m]) is a district (amphoe) of Chiang Mai province in northern Thailand.

Thailand's highest mountain, 2,565 meters (8,415 feet) high Doi Inthanon, in the Thanon Thong Chai Range, is in Mae Chaem District.

Half the waste is reprocessed as fertiliser, wood pellets, and animal feed, but the other half is burned in the open, contributing to Chiang Mai's spring air pollution; finally, due to the district's high elevation upstream of the Ping River, sediment from soil erosion has drifted down 272 kilometres to Bhumibol Dam— Thailand's largest hydroelectric power plant—shortening its lifespan.

Besides ending the open burning of corn residues, the project will provide power to the 70 Mae Chaem villages that have no electricity as of 2019.

Mae Chaem comprising five different ethnic groups, namely Tai Yuan, Paganyaw, Lua, Hmong, and Lisu.