The 2011 Thai FA Cup Final was the 18th final of the Thailand's domestic football cup competition, the FA Cup. The final was played at Suphachalasai Stadium in Bangkok on 11 January 2012. The match was contested by Muangthong United, who beat Songkhla 6–5 (PSO.), (After Extra Time 2-2) in their semi-final, and Buriram PEA who beat Army United 2–0 in the match. The match was won by Buriram PEA, defeating Muangthong United 1–0 after extra time through a goal scored by Frank Acheampong.
|After Extra Time|
|Date||11 January 2012|
|Venue||Suphachalasai Stadium, Bangkok|
|Man of the Match||Frank Acheampong|
Road to the finalEdit
Note: In all results below, the score of the finalist is given first (H: home; A: away; TPL: Clubs from Thai Premier League; D1: Clubs from Thai Division 1 League; D2: Clubs from Regional League Division 2).
|Muangthong United (TPL)||Round||Buriram PEA (TPL)|
|Opponent||Result||Knockout 1 leg||Opponent||Result|
|Samut Prakan United (D2)||9–0 (H)||Round of 64||PTT Rayong (D1)||2–1 (a.e.t.) (H)|
|Bangkok Glass (TPL)||1–1 (a.e.t.) (5–4p) (H)||Round of 32||Bye|
|Pattaya United (TPL)||6–0 (A)||Round of 16||Police United (TPL)||w/o (A)|
|Sriracha (TPL)||4–0 (H)||Quarter-finals||BEC Tero Sasana (TPL)||2–0 (H)|
|Songkhla (D1)||2–2 (a.e.t.) (4–3p) (N)||Semi-finals||Army United (TPL)||2–0 (N)|
|Muangthong United||0 – 1 (a.e.t.)||Buriram PEA|
- 90 minutes.
- 30 minutes of extra-time if necessary.
- Penalty shootout if scores still level.
- Nine named substitutes
- Maximum of 3 substitutions.