The 2003 ASEAN Club Championship or the 2003 ACC was the first edition of the ASEAN Club Championship, an international football competition between domestic champion clubs sides affiliated with the member associations of the ASEAN Football Federation. It was held in Indonesia, whereas originally it was to be hosted by Vietnam.

East Bengal from India, who were an invited club, were crowned the inaugural champions. It was only time that a non-ASEAN side had won the title.

Association team allocation

Teams

1. Notes

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

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Bracket

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Quarter-finals

Semifinals

3rd place playoff

Final

Top scorers

References