2019 Thai League 3 Upper Region is the 3rd season of the Thai football league. It is a part of the Thai League 3 and the feeder league for the Thai League 2. A total of 14 teams will compete in the league this season.
Three clubs were promoted from the 2018 Thai League 4
Two clubs were promoted to the 2019 Thai League 2
A club was relegated to the 2019 Thai League 4 Northeastern Region
A club was relegated from the 2018 Thai League 2
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Since 31 March 2019 Simork had suspended. But statistics of attendances are continue counting.
Source: Thai League 3 <br /> Note:<br /> Some error of T3 official match report 21 August 2019 (Bangkok 2âÂÂ2 Lamphun Warrior).