The Thai FA Cup 2011 () is the 18th season of Thailand knockout football competition. The tournament is organized by the Football Association of Thailand.

The cup winner were guaranteed a place in the 2012 AFC Champions League.

Calendar Round Date Matches Clubs New entries this round Qualifying round 20 April 2011 4 4 → 2 4 First round 20 April 2011 27 April 2011 11 May 2011 25 May 2011 2 + 36 2 + 36 → 19 36 Second round 8 June 2011 15 June 2011 22 June 2011 19 + 17 19 + 17 → 18 17 Third round 9 July 2011 10 July 2011 16 July 2011 17 July 2011 20 July 2011 27 July 2011 17 August 2011 16 October 201118 + 18 18 + 18 → 4 to Fourth Round and 14 to Fifth Round18 Fourth round 4 September 2011 26 October 2011 4 4 → 2 Fifth round 27 August 2011 28 August 2011 31 August 2011 19 October 2011 26 October 2011 2 + 14 2 + 14 → 8 Quarter-finals 4 January 2012 8 8 → 4 Semi-finals 7 January 2012 4 4 → 2 Final 11 January 2012 2 2 → 1

Qualifying round

|colspan="3" style="background-color:#99CCCC"|20 April 2011

Prachinburi won because Sananrak Municipality disqualified

First round

|colspan="3" style="background-color:#99CCCC"|20 April 2011

|colspan="3" style="background-color:#99CCCC"|27 April 2011

|colspan="3" style="background-color:#99CCCC"|11 May 2011

|colspan="3" style="background-color:#99CCCC"|25 May 2011

1 Ratchaburi won because Mukdahan City withdrew

Second round

|colspan="3" style="background-color:#99CCCC"|8 June 2011

|colspan="3" style="background-color:#99CCCC"|15 June 2011

|colspan="3" style="background-color:#99CCCC"|22 June 2011

2 Songkhla won because Yasothon United withdrew 3 Thai Honda withdrew before lots of Second round.

Third round

|colspan="3" style="background-color:#99CCCC"|9 July 2011

|colspan="3" style="background-color:#99CCCC"|10 July 2011

|colspan="3" style="background-color:#99CCCC"|16 July 2011

|colspan="3" style="background-color:#99CCCC"|17 July 2011

|colspan="3" style="background-color:#99CCCC"|20 July 2011

|colspan="3" style="background-color:#99CCCC"|27 July 2011

|colspan="3" style="background-color:#99CCCC"|17 August 2011

|colspan="3" style="background-color:#99CCCC"|19 October 2011

4 (C) is Champion in last season. 5 (RC) is Runner-up in last season.

Fourth round

|colspan="3" style="background-color:#99CCCC"|4 September 2011

|colspan="3" style="background-color:#99CCCC"|26 October 2011

Fifth round

|colspan="3" style="background-color:#99CCCC"|27 August 2011

|colspan="3" style="background-color:#99CCCC"|28 August 2011

|colspan="3" style="background-color:#99CCCC"|31 August 2011

|colspan="3" style="background-color:#99CCCC"|19 October 2011

|colspan="3" style="background-color:#99CCCC"|26 October 2011

|colspan="3" style="background-color:#99CCCC"|30 November 2011

1 Police United failed to turn up for their game.

Quarter-finals

|colspan="3" style="background-color:#99CCCC"|4 January 2012

|colspan="3" style="background-color:#99CCCC"|5 January 2012∗

∗The original schedule was January 4 but postponed due to weather condition (heavy rain).

Semi-finals

|colspan="3" style="background-color:#99CCCC"|7 January 2012

Final

|colspan="3" style="background-color:#99CCCC"|11 January 2012

References