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| Tournament details | |
|---|---|
| Country | Thailand |
| Dates | 27 June 2009 – 23 October 2009 |
| Teams | 78 |
| Final positions | |
| Champions | Thai Port (1st title) |
| Runner-up | BEC Tero Sasana |
The Thai FA Cup 2009 (Thai: มูลนิธิไทยคม เอฟเอคัพ) was the 16th season of Thailand knockout football competition. The competition started on 27 June 2009 and concluded with the final on 21 October 2009. It was the first time the competition was held in 8 years. The tournament is organized by the Football Association of Thailand.
The cup winner were guaranteed a place in the 2010 AFC Cup.