| Fangchanupathum School | |
| Motto: | Good Study, Good Sport, Discipline, Kindness |
| Established: | 1961 |
| Type: | Public |
| Grades: | 7–12 |
| City: | Ban Song Kwae, San Sai, Fang District |
| Province: | Chiang Mai |
| Country: | Thailand |
| Campus Size: | ~30 acres |
| Enrollment: | ~1,500 |
| Faculty: | ~60 |
| Homepage: | http://www.fangchanu.ac.th/ |
Fangchanupathum School (Thai: โรงเรียนฝางชนูปถัมภ์) is a public school in Fang District, Chiang Mai Province, Thailand.Fangchanupathum School is a large, public secondary school located outside of Chiang Mai city center in the Fang district.
Fangchanupathum School was approved by the Department of General Education and began secondary level teaching in 1961. The school is in Ban Song Kwae, 7 km from Fang. People from tambon San Sai and Mae Sun built a one-storey building. The first class had 34 students and three teachers. Mr. Damrong Wiwatnaphon was the first principal in 1966.
At Mathayom Ton levels (grades 7–9), students follow eight core subjects each semester: Thai language, mathematics, science, social science, health and physical education, arts and music, technology, and foreign languages.
At Mathayom Pai levels (grades 10–12), students are allowed to choose one or two elective courses. The science programme (Wit-Kanit) and the mathematics-English language programme (Sil-Kamnuan) are among the most popular. Foreign language programmes (Sil-Phasa) include (Chinese and English).