2018 Thai League 4 Northern Region

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 clubs
Promoted to the 2018 Thai League 3 Upper Region
 * JL Chiangmai United
 * Chiangrai City

Promoted from the 2017 Thailand Amateur League Northern Region
 * Nakhon Mae Sot United

Relegated clubs
Relegated to the 2018 Thailand Amateur League Northern Region
 * Paknampho NSRU

Relegated from the 2017 Thai League 3 Upper Region
 * Singburi Bangrajun

Suspended clubs

 * Chiangrai United B is suspended 1 year from 2017 Thai League 4 Northern Region get lower 7th.

Expansion clubs

 * Tak City Club-licensing football club didn't pass to play 2018 Thai League 4 Northern Region. This team is banned 2 years and Relegated to 2020 Thailand Amateur League Northern Region.

Reserving clubs

 * Sukhothai U-23 is Sukhothai Reserving this team which join Northern Region first time.

Results 3rd match for each team
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).

Top scorers

 * As of 26 August 2018. 

Attendance by home match played
Source: Thai League 4 Note: Unk.1 Some error of T4 official match report 8 July 2018 (Uttaradit 4–1 Nakhon Mae Sot United).

Unk.2 Some error of T4 official match report 15 July 2018 (Uttaradit 3–2 Nakhon Sawan).