2018 Thai League 4 Northern Region is the 10th season of the League competition since its establishment in 2009. It is in the 4th tier of the Thai football league system.
Promoted to the 2018 Thai League 3 Upper Region
Promoted from the 2017 Thailand Amateur League Northern Region
Relegated to the 2018 Thailand Amateur League Northern Region
Relegated from the 2017 Thai League 3 Upper Region
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In the third leg, the winner on head-to-head result of the first and the second leg will be home team. If head-to-head result are tie, must to find the home team from head-to-head goals different. If all of head-to-head still tie, must to find the home team from penalty kickoff on the end of each second leg match (This penalty kickoff don't bring to calculate points on league table, it's only the process to find the home team on third leg).
<small>Source: Thai League 4 </small> <small>Note:</small><br /><small> Some error of T4 official match report 8 July 2018 (Uttaradit 4âÂÂ1 Nakhon Mae Sot United).</small> <br /><small> Some error of T4 official match report 15 July 2018 (Uttaradit 3âÂÂ2 Nakhon Sawan).</small>