2002–03 AFC Champions League
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.
Group stage
Group A
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Group B
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Group C
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Group D
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Knockout stage
Semi-finals
Matches
BEC Tero Sasana won 3–2 on aggregate.----
''Al-Ain won 7–6 on aggregate.''
Final
Matches
''Al-Ain won 2–1 on aggregate.''Top scorers
| Rank | Player | Team | Goals |
| 1 |  |