The 2026–27 Thai League 3 Northeastern Region was part of the 2026–27 Thai League 3 Regional Stage, consisting of 12 clubs located in the northeastern region (Isan) of Thailand. The season commenced on 18 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 Northeastern 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 Northeastern Region: Esan Fighter – promoted as regional champions. Pitchaya Bundit College – promoted as runners-up under a special quota.
Promotion to Thai League 2 Muang Loei United was promoted to the 2026–27 Thai League 2 after finishing fourth in the 2025–26 Thai League 3 National Championship Stage. The club originally finished outside the promotion places. Still, it was awarded a promotion place after national champions Nara United failed to obtain a Thai League 2 club licence and was therefore ineligible to participate in the 2026–27 season.
Relegation to Thailand Semi-pro League Surin Khong Chee Mool was relegated to the 2027 Thailand Semi-pro League after finishing bottom of the 2025–26 Thai League 3 Northeastern Region.
Club name and logo changes Roi Et PB United introduced a new club logo for the 2026–27 season, replacing the previous red-and-gold design with a predominantly purple-and-white design while retaining the club's overall shield-shaped identity.
Teams Number of teams by province PositionProvinceNumberTeams13Esan Fighter, Udon Banjan United, and Udon United22Khon Kaen and Khon Kaen Mordindang2EUMT and Ubon Kruanapat41Korat City1Pitchaya Bundit College1Roi Et PB United1Surin City1Yasothon
Stadiums and locations
Team Location Stadium CoordinatesUdon Thani SAT StadiumUMT StadiumKhon Kaen PAO StadiumStadium of Khon Kaen UniversityStadium of Nakhon Ratchasima Rajabhat UniversityNong Bua Lamphu Provincial StadiumRoi Et Provincial StadiumStadium of Rajamangala University of Technology Isan, Surin CampusStadium of Ubon Ratchathani Rajabhat UniversityStadium of Thailand National Sports University, Udon Thani CampusStadium of Thailand National Sports University, Udon Thani CampusYasothon PAO 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