| Tournament details | |
|---|---|
| Dates | 18 February – 7 November 2009 |
| Teams | 35 (from 13 associations) |
| Final positions | |
| Champions |  Pohang Steelers (3rd title) |
| Runners-up |  Al-Ittihad |
| Tournament statistics | |
| Matches played | 111 |
| Goals scored | 329 (2.96 per match) |
| Attendance | 1,396,226 (12,579 per match) |
| Top scorer(s) |  Leandro(10 goals) |
| Best player(s) | No Byung-jun |
← 2008 2010 → | |
The 2009 AFC Champions League was the 28th edition of the top-level Asian club football tournament organized by the Asian Football Confederation (AFC), and the 7th under the current AFC Champions League title. The final was held at the National Stadium in Tokyo on 7 November 2009. The winners, South Korean club Pohang Steelers, qualified for the 2009 FIFA Club World Cup in the United Arab Emirates.
The champions league was expanded to 35 clubs this year, with 5 teams starting from a knockout qualifying stage. An extra stage in the knockout phase was added so that the runners up as well as the winners from the group stage would progress. The previous season winner no longer got a bye through to the knockout round. Each team was allowed to field a maximum of four foreign players this season, one of whom had to be from an AFC Member Association country.