| Tourney Name: | GCC Club Championship |
| Year: | 2003 |
| Country: | Kuwait |
| Dates: | 27 January – 7 February 2003 |
| Num Teams: | 5 |
| Confederations: | AFC/UAFA |
| Champion Other: | Al-Arabi |
| Count: | 2 |
| Second Other: |  Al-Muharraq |
| Prevseason: | 2002 |
| Nextseason: | 2005 |
The 20th GCC Club Championship (ar|بطولة الأنديـة الخليجية أبطال الدوري) was the twentieth edition of the GCC Club Championship for clubs of the Gulf Cooperation Council nations.
The 2003 edition was won by Kuwaiti side Al Arabi Kuwait for the second time.
| Team | Pts | Pld | W | D | L | GF | GA | GD | |
|---|---|---|---|---|---|---|---|---|---|
| Al Arabi Kuwait | 8 | 4 | 2 | 2 | 0 | 4 | 2 | +2 | |
| Al-Muharraq | 7 | 4 | 2 | 1 | 1 | 5 | 3 | +2 | |
| Al-Hilal | 7 | 4 | 2 | 1 | 1 | 5 | 3 | +2 | |
 Al-Oruba | 4 | 4 | 1 | 1 | 2 | 3 | 4 | -1 | |
 Qatar SC | 1 | 4 | 0 | 1 | 3 | 1 | 7 | -6 |
All match were played in Kuwait.
| width=10% | width=20% | width=12% | width=20% | |||||
|---|---|---|---|---|---|---|---|---|
| Jan 27, 2003 | Al Hilal | 2 - 0 | Qatar SC | |||||
| Jan 28, 2003 | Muharraq | 1 - 2 | Al Arabi | |||||
| Jan 29, 2003 | Al Oruba | 1–2 | Al Hilal | |||||
| Jan 30, 2003 | Qatar SC | 0 - 2 | Muharraq | |||||
| Feb 1, 2003 | Al Arabi | 0–0 | Al Oruba | |||||
| Feb 2, 2003 | Al Hilal | 1 - 1 | Muharraq | |||||
| Feb 3, 2003 | Qatar SC | 1 - 1 | Al Arabi | |||||
| Feb 5, 2003 | Muharraq | 1–0 | Al Oruba | |||||
| Feb 6, 2003 | Al Hilal | 0 - 1 | Al Arabi | |||||
| Feb 7, 2003 | Qatar SC | 0–2 | Al Oruba |
Al-Muharraq came second on the toss of a coin
| GCC Club Championship 2003 Winners | |
|---|---|
 | |
| Al Arabi Kuwait 2nd Title |