Public university · founded 1986 · 99 Moo 18 Phahonyothin Road, Khlong Nueng, Khlong Luang District, Pathum Thani
Thammasat University itself was founded in Bangkok on 27 June 1934 as Thailand's second university, but by the 1980s its original riverside campus could no longer accommodate a growing student body. The university broke ground on a new site in Khlong Luang District, Pathum Thani, roughly 40km north of Bangkok, and the Rangsit Campus accepted its first students in 1985, formally opening the following year to house the new Faculty of Science and Technology. Growth continued fast through the 1980s and 1990s -- the Faculty of Engineering opened at Rangsit in 1989 and the Faculty of Medicine in 1990 -- and the campus has since become Thammasat's largest and primary site, spanning more than 1,500 acres along Phahonyothin Road.
Most of Thammasat's undergraduate programs are now based at Rangsit, spanning faculties from engineering, science and medicine to law, economics, journalism and the liberal arts, alongside Thammasat University Hospital, a major teaching hospital serving Pathum Thani and the surrounding area. A planned extension of the SRT Red Line, with construction starting in July 2026, will eventually put the campus directly on Bangkok's rail network for the first time.
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