| Tourney Name: | ASEAN Club Championship |
| Year: | 2003 |
| Country: | Indonesia |
| Dates: | 13–26 July |
| Num Teams: | 11 |
| Confederations: | 1 |
| Venues: | 2 |
| Cities: | 2 |
| Champion Other: |  East Bengal |
| Count: | 1 |
| Second Other: |  BEC Tero Sasana |
| Third Other: |  Petrokimia Putra |
| Matches: | 17 |
| Goals: | 59 |
| Top Scorer: | Baichung Bhutia (East Bengal) (9 goals) |
| Player: | Therdsak Chaiman (BEC Tero Sasana) |
| Goalkeeper: | Sandip Nandy (East Bengal) |
| Fair Play: | Perak |
| Nextseason: | 2005 |
The 2003 ASEAN Club Championship or the 2003 ACC was the first edition of the ASEAN Club Championship, an international association football competition between domestic champion clubs sides affiliated with the member associations of the ASEAN Football Federation.[1] It was held at Indonesia. Invitee's East Bengal from India were crowned the inaugural champions.[2] [3] It was only time that a non ASEAN side had won the title. Originally, the championship was to be hosted by Vietnam.[4] [5]
| Team | Qualification |
|---|---|
| Petrokimia Putra | Liga Indonesia 2002 champions (Hosts) |
| Samart United | Cambodian League 2002 champions |
 Finance and Revenue | Myanmar Premier League 2002 champions |
| Perak | 2002 Malaysian Premier 1 League champions |
| Singapore Armed Forces | S. League 2002 champions |
| DPMM FC | Brunei Premier League 2002 champions |
| Persita Tangerang | Liga Indonesia 2002 runners-up |
| Hoàng Anh Gia Lai | V-League 2001–02 |
 MCTPC | Lao League 2002 champions |
| BEC Tero Sasana | 2001–02 Thai League champions |
| Philippine Army | Philippines National Football League 2002 champions |
| East Bengal | National Football League 2002–03 champions (Invitee) |
Finance and Revenue withdrew from the competition without playing a single match).----------
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| Player | Club | Goals | |
|---|---|---|---|
| Baichung Bhutia | East Bengal | 9 | |
 Frank Seator |  Perak | 5 | |
| Zaenal Arief | Persita Tangerang | 4 | |
| Therdsak Chaiman | BEC Tero Sasana | 4 | |
 Rivaldo Costa | Petrokimia Putra | 3 | |
| Jaenal Ichwan | Petrokimia Putra | 3 | |
| Wuttiya Yongant | BEC Tero Sasana | 2 | |
| Jatupong Thongsuk | BEC Tero Sasana | 2 | |
| Danilo Fernando | Petrokimia Putra | 2 | |
 Jeyakanth Jeyapal | Singapore Armed Forces | 2 | |
| Ilham Jaya Kesuma | Persita Tangerang | 2 | |
| Kiatisuk Senamuang | Hoàng Anh Gia Lai | 2 | |
| Bijen Singh | East Bengal | 1 | |
 Mike Okoro | East Bengal | 1 | |
| Alvito D'Cunha | East Bengal | 1 | |
| Anucha Kitpongsri | BEC Tero Sasana | 1 | |
| Panai Kongprapun | BEC Tero Sasana | 1 | |
| Aris Budi Prasetyo | Petrokimia Putra | 1 | |
| Indra Putra Mahayuddin | Perak | 1 | |
| Syamsul Saad | Perak | 1 | |
| Harizul Izuan Rani | Perak | 1 | |
 Nenad Bacina | Singapore Armed Forces | 1 | |
| Anthony Jommah Ballah | Persita Tangerang | 1 | |
| Deddy Djunaidi | Persita Tangerang | 1 | |
| Nguyễn Minh Hải | Hoàng Anh Gia Lai | 1 | |
| Lê Quốc Vượng | Hoàng Anh Gia Lai | 1 | |
| Oleseye Ajayi | DPMM | 1 | |
| Hairoddin Abdullah | DPMM | 1 | |
| Bounlap Khenkitisack | MCTPC | 1 | |
| Vanhnaseng Nakhady | MCTPC | 1 |