|Host country Uruguay|
Champions Argentina (4th title)
|Venue(s) 3 (in 3 host cities)|
|Dates 4 January to 28 January|
Teams 10 (from 1 confederation)
The 2003 South American Youth Championship (Sudamericana sub-20) is a football competition contested by all ten U-20 national football teams of CONMEBOL. The tournament was held in Uruguay between 4 January and 28 January 2003, it was the 21st time the competition has been held and the second to take place in Uruguay. Argentina won their fourth trophy.
The teams are separated in two groups of five, and each team plays four matches in a pure round-robin stage. The three top competitors advance to a single final group of six, wherein each team plays five matches. The top four teams in the final group qualify to the 2003 FIFA U-20 World Cup.
For a list of all the squads in the final tournament, see 2003 South American Youth Championship squads.
The following teams entered the tournament:
First group stage
When teams finish level of points, the final order determined according to:
- superior goal difference in all matches
- greater number of goals scored in all group matches
- better result in matches between tied teams
- drawing of lots