The 2019 Thai FA Cup is the 26th season of a Thailand's knockout football competition. It was sponsored by Chang, and known as the Chang FA Cup (Thai: ช้าง เอฟเอคัพ) for sponsorship purposes. The tournament is organized by the Football Association of Thailand. 100 clubs were accepted into the tournament, and it began with the qualification round on 27 March 2019 and concluded with the final on 2 November 2019. The winner would have qualified for the 2020 AFC Champions League preliminary round 2 and the 2020 Thailand Champions Cup. Chiangrai United defend champion but was knocked out in quarter-final by Port.
The second round would be featured by 32 clubs which were the winners of the first round including 12 clubs from T1, 12 clubs from T2, 2 clubs from T3, 5 clubs from T4, and 1 club from T5.[4] This round had drawn on 30 May 2019.[5]
The third round would be featured by 16 clubs which were the winners of the second round including 9 clubs from T1, 4 clubs from T2, 1 club from T3, and 2 clubs from T4.[6] This round had drawn on 21 June 2019.[7]
The quarter-finals round would be featured by 8 clubs which were the winners of the third round including 7 clubs from T1 and 1 club from T2.[8] This round had drawn on 19 July 2019.[9]
The semi-finals round would be featured by 4 clubs which were the winners of the quarter-finals round, all were clubs from T1.[10] This round had drawn on 20 August 2019.[11]
The final round would be featured by 2 clubs which were the winners of the semi-finals round, both were clubs from T1.[12] This round was played on 2 November 2019 at Leo Stadium in Thanyaburi, Pathum Thani.[13]
