| Tourney Name: | AFC Champions League |
| Year: | 2009 |
| Num Teams: | 35 |
| Associations: | 13 |
| Champion Other: |  Pohang Steelers |
| Count: | 3 |
| Second Other: | Al-Ittihad |
| Matches: | 111 |
| Goals: | 329 |
| Attendance: | 1396226 |
| Top Scorer: |  Leandro(10 goals) |
| Player: | No Byung-jun |
| Prevseason: | 2008 |
| Nextseason: | 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.
A total of 35 teams participated in the 2009 AFC Champions League.[1]
| +West Asia | |||||||
| Pos | Member Association | Points (total 500) | width=14% rowspan="2" | Clubs | Spots | ||
|---|---|---|---|---|---|---|---|
| width=15% | Group stage | width=15% | Play-off | width=14% | AFC Cup | ||
| 4 | Saudi Arabia | 365 | 12 | 4 | 0 | 0 | |
| 5 | UAE | 356 | 12 | 3 | 1 | 0 | |
| 7 |  Iran | 340 | 18 | 4 | 0 | 0 | |
| 9 |  Uzbekistan | 289 | 16 | 2 | 0 | 1 | |
| 10 |  Qatar | 270 | 10 | 2 | 0 | 0 | |
| 13 |  India | 202 | 10 | 0 | 1 | 1 | |
| Meet the criteria | ||
| Do not meet the criteria |
| +East Asia | |||||||
| Pos | Member Association | Points (total 500) | width=14% rowspan="2" | Clubs | Spots | ||
|---|---|---|---|---|---|---|---|
| width=15% | Group stage | width=15% | Play-off | width=14% | AFC Cup | ||
| 1 |  Japan | 470 | 18 | 4 | 0 | 0 | |
| 2 | Korea Republic | 441 | 14 | 4 | 0 | 0 | |
| 3 |  China PR | 431 | 16 | 4 | 0 | 0 | |
| 6 |  Australia | 343 | 7+1† | 2 | 0 | 0 | |
| 8 |  Indonesia | 296 | 18 | 1 | 1 | 0 | |
| 11 | Singapore | 279 | 12 | 0 | 1 | 1 | |
| 12 |  Thailand | 221 | 16 | 0 | 1 | 1 | |
| 14 | Vietnam | 191 | 14 | 0 | 0 | 2 | |
Below is the qualification scheme for the 2009 AFC Champions League:
Qualifying play-off: (5 teams)
Indonesia, Singapore, Thailand, India each have 1 team qualifyGroup stage: (32 teams)
Japan, China, Iran, South Korea, Saudi Arabia Australia, Uzbekistan, Qatar 1 team qualified: IndonesiaThe following teams had qualified for qualifying play-off, but were removed as their leagues did not meet the Champions League criteria:
| Team | Original qualification | |
|---|---|---|
| Binh Duong | 2008 V-League champions | |
 Muharraq | 2008 AFC Cup winners | |
| Safa | 2008 AFC Cup runners-up |
In the following table, the number of appearances and last appearance count only those since the 2002–03 season (including qualifying rounds), when the competition was rebranded as the AFC Champions League. TH means title holders.
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See main article: 2009 AFC Champions League qualifying play-off.
See main article: 2009 AFC Champions League group stage. The draw for the group stage was held on 7 January 2009 in Abu Dhabi, UAE.
Each club played double round-robin (home and away) against fellow three group members, a total of 6 matches each. Each team had been numbered from 1 to 4, the numbers determine the order of the fixtures.
Clubs receive 3 points for a win, 1 point for a tie, 0 points for a loss. The clubs are ranked according to points and tie breakers are in following order:
Winners and runners-up of each group qualified for the next round.
See main article: 2009 AFC Champions League knockout stage.
The draw for the round of 16 of the 2009 AFC Champions League was held on 7 January 2009, along with the draw for the group stage. The West Asian matches were played on 26 and 27 May. The East Asian matches were played on 24 June.
The draw for the quarter-finals and the remaining knockout rounds took place at Kuala Lumpur, Malaysia on 29 June 2009. The first leg matches were played on 23–24 September, with the second leg matches were played on 30 September.
The first leg matches were played on 21 October, with the second leg matches were played on 28 October 2009.
See main article: 2009 AFC Champions League Final. The 2009 AFC Champions League Final was played on 7 November at National Stadium, Tokyo, Japan.
Note: Goals scored in qualifying round not counted.
| Rank | Player | Club | Total | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | Leandro | Gamba Osaka | 1 | 3 | 2 | 1 | 1 | 2 | 10 | ||||||
| 2 |  Prince Tagoe | Al-Ettifaq | 2 | 3 | 2 | 1 | 8 | ||||||||
| 3 | Denilson | Pohang Steelers | 3 | 1 | 1 | 2 | 7 | ||||||||
| 4 | Nasser Al-Shamrani | Al-Shabab | 1 | 1 | 3 | 1 | 6 | ||||||||
| 5 | Al-Ittihad | 1 | 3 | 1 | 5 | ||||||||||
| Yoshizumi Ogawa | Nagoya Grampus | 1 | 2 | 1 | 1 | 5 | |||||||||
 Hicham Aboucherouane | Al-Ittihad | 1 | 1 | 1 | 1 | 1 | 5 | ||||||||
 Dejan Damjanović | FC Seoul | 3 | 1 | 1 | 5 | ||||||||||
| Renatinho | Kawasaki Frontale | 1 | 1 | 1 | 1 | 1 | 5 | ||||||||
| Zaynitdin Tadjiyev | Pakhtakor | 1 | 1 | 1 | 1 | 1 | 5 | ||||||||
| Araújo | Al-Gharafa | 1 | 1 | 3 | 5 | ||||||||||