2019 Thai League 2

The 2019 Thai League 2 is the 22nd season of the Thai League 2, the second-tier professional league for Thailand's association football clubs, since its establishment in 1997, also known as M-150 Championship due to the sponsorship deal with M-150. A total of 18 teams will compete in the league. The season began on 9 February 2019 and is scheduled to conclude on 27 October 2019.

The 1st transfer window is from 26 November 2018 to 19 February 2019 while the 2nd transfer window is from 24 June 2019 to 19 July 2019.

From Thai League 2

 * Promoted to 2019 Thai League 1


 * PTT Rayong
 * Trat
 * Chiangmai


 * Relegated to 2019 Thai League 3


 * Krabi
 * Angthong

To Thai League 2

 * Relegated from 2018 Thai League 1


 * Bangkok Glass
 * Police Tero
 * Navy
 * Ubon UMT United
 * Air Force Central


 * Promoted from 2018 Thai League 3


 * JL Chiangmai United
 * Ayutthaya United
 * Customs United

Renamed Clubs

 * Bangkok Glass was renamed BG Pathum United
 * Ubon UMT United was renamed Ubon United
 * Air Force Central was renamed Air Force United

Top scorers

 * As of 27 October 2019.

Attendance by home match played
Source: Thai League 2