2003 CONCACAF Champions' Cup
The 2003 CONCACAF Champions' Cup was the 38th edition of the annual international club football competition held in the CONCACAF region, the CONCACAF Champions' Cup. It was won by Club Toluca after a 5-4 aggregate win over Monarcas Morelia in the final. The tournament was held between March 6 and October 8. The 16-team format was scrapped for an eight-team format in 2004.
Qualified teams
North American zone
- 2002 Apertura championMonarcas Morelia - 2002 Apertura runner-up
Club América - 2002 Verano champion
Club Necaxa - 2002 Verano runner-up
Los Angeles Galaxy - 2002 MLS Cup champion and 2002 MLS Supporters Shield winner
New England Revolution - 2002 MLS Cup runner-up
San Jose Earthquakes - 2002 MLS Supporters Shield runner-up
Columbus Crew - 2002 Lamar Hunt U.S. Open Cup winner
Central American zone
- 2002 UNCAF Interclub Cup winnerÁrabe Unido - 2002 UNCAF Interclub Cup runner-up
Motagua - 2002 UNCAF Interclub Cup third place
Comunicaciones - 2002 UNCAF Interclub Cup fourth place
Municipal - 2002 UNCAF Interclub Cup semifinal runner-up
FAS - 2002 UNCAF Interclub Cup semifinal runner-up
Caribbean zone
- 2002 CFU Club Championship finalistArnett Gardens - 2002 CFU Club Championship finalist
Bracket
Round of 16
Quarterfinals
Semifinals
----- Morelia advanced 6–0 on aggregate.
- Toluca advanced 5–4 on aggregate.
Final
- Club Toluca win 5-4 on aggregate.
Champions
| CONCACAF Champions' Cup 2003 Winners |
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| Club Deportivo Toluca Second Title |