The 2019 Thai FA Cup is the 26th season of a Thailand's knockout football competition.

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.

Chiangrai United defend champion but was knocked out in quarter-final by Port.

[12] This round was played on 2 November 2019 at Leo Stadium in Thanyaburi, Pathum Thani.