San Pa Tong (Thai: สันป่าตอง, pronounced [sǎn pàː tɔ̄ːŋ]) is a district (amphoe) of Chiang Mai Province in northern Thailand.
Neighboring districts are (from the southwest clockwise) Doi Lo, Mae Wang, Hang Dong of Chiang Mai Province, Mueang Lamphun and Pa Sang of Lamphun Province.