Montfort College (Thai: มงฟอร์ตวิทยาลัย) is a private Catholic school in Chiang Mai, Thailand.

The Brothers of St. Gabriel came to Chiang Mai and established Montfort Primary School in 1932 along Charoen Prathet Road on a 5-acre (20,000 m) plot of land provided by Bishop Peross from Luang Anusarn Suntorn who gave his financial support at no interest. The land was located along the Ping River, approximately 200 meters from the Sacred Heart Church. Montfort School opened its first academic year on 16 March 1932. Fr. Reunemenier was the manager, Brother Simon the first director, Brother Ambrosio the vice-director and Brother Louis was responsible for new construction.

Montfort College opened its secondary section in 1949, started to admit girls to its secondary section from levels 10–12 in 1975 and started to admit girls to its primary section in 2009.

Montfort College has two sections: primary (grades 1–6) and secondary (grades 7–12). In 2013, the secondary section had 3,238 students, while the primary had approximately 2,400 students. The school has two teaching syllabuses: normal and English.

• Thaksin Shinawatra – 23rd Prime Minister of Thailand

• Surapong Tovichakchaikul – former Deputy Prime Minister of Foreign Affairs of Thailand
• Tharin Nimmanahaeminda – former Finance Minister of Thailand
• Tawatwong na Chiang Mai – former Deputy Minister of Finance, Deputy Minister of Public Health, and Deputy Minister of Foreign Affairs of Thailand
• Chao Wonglak na Chiangmai – Prince of Chiangmai, Legitimate heir of the ruler of Chiang Mai
• Sukrit Wisetkaew – singer and actor
• Witwisit Hirunwongkul – actor and singer
• Chookiat Sakveerakul – film director
• Panupong Wongsa – footballer
• Pattadon Janngeon - actor and singer
• Thanawat Rattanakitpaisan - actor and singer

• Montfort College website (Thai)
• Montfort College website (English)
• Montfort Alumni

18°46′21″N 99°00′02″E / 18.7725°N 99.0006°E / 18.7725; 99.0006