2002–03 AFC Champions League
| Tournament details | |
|---|---|
| Dates | 13 August – 27 November 2002 (qualifying rounds) 9 March – 11 October 2003 (group & final stages) |
| Teams | 16 (group stage) |
| Final positions | |
| Champions | Al-Ain (1st title) |
| Runners-up | BEC Tero Sasana |
| Tournament statistics | |
| Matches played | 30 |
| Goals scored | 104 (3.47 per match) |
| Top scorer(s) | Hao Haidong (9 goals) |
| Best player(s) | Therdsak Chaiman |
← 2001–02 (Asian Club Championship) 2004 → | |
The 2002–03 AFC Champions League was the twenty-second edition of Asia's premier football competition organised by the Asian Football Confederation, and the first edition under the AFC Champions League title.
Sixteen teams competed in this edition as they went through qualifying before going into four groups of four with only the winner of the group qualifying to the knockout-stage which went to two-legs instead of the single leg that the previous year competition had.