The 2017 Thai FA Cup is the 24th 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. 74 clubs were accepted into the tournament, and it began with the qualification round on 5 April 2017, and concluded with the final on 25 November 2017. The winner would have qualified for the 2018 AFC Champions League preliminary round 2 and the 2018 Thailand Champions Cup.
The second round will be featured by thirty-two clubs which were the winners of the first round. Second round had drawn on 13 July 2017 by FA Thailand.[5] The second round was held on 2 August 2017.
The third round will be featured by sixteen clubs which were the winners of the second round; including eight clubs from T1, seven clubs from T2, and one club from T4. The draw for the third round was held on 12 September 2017, at the Rajpruek club in Bangkok.[6] All matches of this round was held on 27 September 2017.
The quarter-finals will be featured by eight clubs which were the winners of the third round; including five clubs from T1, two clubs from T2, and one club from T4. Quarter-finals had drawn on 11 October 2017 at the Rajpruek club in Bangkok. All matches of this round was held on 18 October 2017.
The semi-finals will be featured by four clubs which were the winners of the quarter-finals round, including three clubs from T1 and one club from T4. Semi-finals had drawn on 19 October 2017 at the Rajpruek club in Bangkok. All matches of this round was held on 1 November 2017.
^"Qualification round drawing". Results of drawing that teams on the left hand side will be the home teams. 17 March 2017. Archived from the original on 15 December 2018. Retrieved 19 March 2017.
^"FA Cup". smmsport.com. SMM Sport. 17 March 2017.
^"First round drawing". Results of drawing that teams on the left hand side will be the home teams. 5 June 2017. Archived from the original on 15 December 2018. Retrieved 7 June 2017.