The Thai FA Cup 2013 () is the 20th season of Thailand knockout football competition. The tournament is organized by the Football Association of Thailand.
The cup winner is guaranteed a place in the 2014 AFC Champions League Play-off.
Calendar
1st qualifying round
2nd qualifying round
|colspan="3" style="background-color:#99CCCC"|3 April 2013
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<sup>1</sup> Samut Sakhon Boorana won because Phayao withdrew
<sup>2</sup> Lampang won because Pluak Daeng withdrew
First round
|colspan="3" style="background-color:#99CCCC"|10 April 2013
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<sup>1</sup> Nara United won because Samut Sakorn Boorana refused to travel to the deep south and therefore forfeited the tie
<sup>2</sup> Phattalung won because Mukdahan withdrew
Second round
Third round
<sup>1</sup> Bangkok won because Sisaket was suspended
<sup>2</sup> Match was abandoned at 45' (1âÂÂ0) due to floodlight failure; completed on June 27
Fourth round
Quarterfinals
Semifinals
Final