The Faculty of Medicine, Chiang Mai University (Thai: คณะแพทยศาสตร์ มหาวิทยาลัยเชียงใหม่) is the third oldest medical school in Thailand located in Mueang Chiang Mai, Chiang Mai and is the first medical school in Thailand to be set up in a regional location outside Bangkok.

Therefore, the University and the Ministry of Public Health proposed the construction of the Faculty of Medicine Nakorn Chiang Mai Hospital which was to be set up to spread medical education to more regional parts of Thailand.

This was done in 1954 and in 1956 involved cooperation with United States Overseas Missions (USOM), providing the funding, equipment and technology for the medical school.

The organisation of the faculty was approved by the cabinet on 12 December 1956 and construction was ordered by royal decree of King Bhumibol Adulyadej on 28 October 1959.

Chiang Mai University was then founded in 1964 by royal decree and officially opened on 24 January 1965.