The 2026–27 Thai League 3 Eastern Region was part of the 2026–27 Thai League 3 Regional Stage, consisting of 11 clubs located in the eastern region of Thailand, as well as some from the eastern part of the central region. 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 21 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 Eastern Region has been reduced to 11 clubs, down from 12 last 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 Eastern Region: MNK – promoted as regional champions. Banbueng – promoted as runners-up under a special quota.
Relegation to Thailand Semi-pro League The following three clubs were relegated from the 2025–26 Thai League 3 Eastern Region to the 2027 Thailand Semi-pro League: Bankhai United, who finished fifth in the Eastern Region, failed to obtain a Thai League 3 club licence and was relegated to the Thailand Semi-pro League. Saimit Kabin United, who finished sixth in the Eastern Region, failed to obtain a Thai League 3 club licence and was relegated to the Thailand Semi-pro League. ACDC was relegated to the 2027 Thailand Semi-pro League after finishing bottom of the 2025–26 Thai League 3 Eastern Region.
Teams Number of teams by province PositionProvinceNumberTeams17Banbueng, BFB Pattaya City, Burapha United, Fleet, Marines, MNK, and Navy22Chachoengsao Hi-Tek and Padriew City31Pluakdaeng United1Customs United
Stadiums and locations
Team Location Stadium CoordinatesChang Football ParkNong Prue StadiumBanbueng Municipal StadiumChachoengsao Municipal StadiumStadium of Customs Department, Lad Krabang 54Battleship StadiumBattleship StadiumStadium of Rajamangala University of Technology Tawan-okSattahip Navy StadiumChachoengsao Municipal StadiumCK 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