The 2026–27 Thai League 3 Northern Region was part of the 2026–27 Thai League 3 Regional Stage, consisting of 12 clubs located across the northern region of Thailand, including some areas in the upper parts of the central and western regions. The season commenced on 19 September 2026, with clubs competing in a round-robin format featuring home-and-away matches. The Regional Stage concluded on 20 March 2027, with the top two clubs advancing to the National Championship Stage, while the bottom-placed club was relegated to the Thailand Semi-pro League for the following season.
Seasonal Changes The 2026–27 Thai League 3 Northern Region retains 12 clubs, unchanged from the previous season. BYD Auto remains the title sponsor, with matches broadcast on AIS Play. The criteria for determining the standings have also been revised, with overall goal difference replacing head-to-head results as the primary tiebreaker.
Promotions from Thailand Semi-pro League The following two clubs were promoted from the 2026 Thailand Semi-pro League to the 2026–27 Thai League 3 Northern Region: TNSU Lampang – promoted as regional champions. Paknampho – promoted as runners-up under a special quota.
Promotion to Thai League 2 Uttaradit was promoted to the 2026–27 Thai League 2 as the runners-up of the 2025–26 Thai League 3 National Championship Stage.
Relegation to Thailand Semi-pro League Nakhon Sawan See Khwae City was relegated to the 2027 Thailand Semi-pro League after finishing bottom of the 2025–26 Thai League 3 Northern Region.
Club name and logo changes Chiangrai TSC introduced a new club logo for the 2026–27 season, replacing the previous design with a red-and-gold shield featuring four emblematic elements and a central banner bearing the club's name, "CHIANGRAI TSC FC".
Teams Number of teams by province PositionProvinceNumberTeams12Chiangmai and Maejo United2Chiangrai City and Chiangrai TSC2Khelang United and TNSU Lampang2Chattrakan City and Phitsanulok51Kamphaengphet1Paknampho1Phichit United1Northern Nakhon Mae Sot United
Stadiums and locations
Team Location Stadium CoordinatesStadium of Pibulsongkram Rajabhat UniversityChiangmai Municipal StadiumSingha Chiangrai StadiumChiangrai Provincial StadiumCha Kung Rao StadiumStadium of Lampang Rajabhat UniversityStadium of Rajamangala University of Technology Lanna, Doi Saket CampusFive Border Districts StadiumStadium of Nakhon Sawan Sports SchoolPhichit StadiumPhitsanulok PAO StadiumLampang Provincial Stadium
Road travel distances between clubs
Foreign players A T3 team can register 3 foreign players from around the world. A team can field 3 foreign players in each game.
League table Standings
Positions by round
Results by round
Results
References
External links Official website of Thai League