| Year: | 2003 |
| Other Titles: | 2003 Sudamericano Sub-20 |
| Country: | Uruguay |
| Dates: | 4–28 January |
| Num Teams: | 10 |
| Confederations: | 1 |
| Venues: | 3 |
| Cities: | 3 |
| Count: | 4 |
| Matches: | 35 |
| Goals: | 104 |
| Top Scorer: |  Fernando Cavenaghi (8 goals) |
| Prevseason: | 2001 |
| Nextseason: | 2005 |
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 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.
| City / Town | Stadium | Capacity | |
|---|---|---|---|
| Montevideo | 66,500 | ||
| Colonia del Sacramento | Estadio Suppici | 12,000 | |
| Maldonado, Uruguay | Estadio Domingo Burgueño | 22,000 |
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:
When teams finish level of points, the final order determined according to:
| width=200 | Team | width=20 | Pts | width=20 | Pld | width=20 | W | width=20 | D | width=20 | L | width=20 | GF | width=20 | GA |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 12 | 4 | 4 | 0 | 0 | 15 | 0 | |||||||||
| 9 | 4 | 3 | 0 | 1 | 10 | 4 | |||||||||
| 6 | 4 | 2 | 0 | 2 | 4 | 6 | |||||||||
| 3 | 4 | 1 | 0 | 3 | 3 | 14 | |||||||||
| 0 | 4 | 0 | 0 | 4 | 3 | 11 |
----------------
| width=200 | Team | width=20 | Pts | width=20 | Pld | width=20 | W | width=20 | D | width=20 | L | width=20 | GF | width=20 | GA |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 9 | 4 | 3 | 0 | 1 | 7 | 3 | |||||||||
| 9 | 4 | 3 | 0 | 1 | 7 | 3 | |||||||||
| 6 | 4 | 2 | 0 | 2 | 7 | 10 | |||||||||
| 3 | 4 | 1 | 0 | 3 | 4 | 6 | |||||||||
| 3 | 4 | 1 | 0 | 3 | 1 | 4 |
----------------
| width=200 | Team | width=20 | Pts | width=20 | Pld | width=20 | W | width=20 | D | width=20 | L | width=20 | GF | width=20 | GA | width=20 | Dif |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 11 | 5 | 3 | 2 | 0 | 8 | 2 | +6 | ||||||||||
| 10 | 5 | 3 | 1 | 1 | 8 | 5 | +3 | ||||||||||
| 9 | 5 | 2 | 3 | 0 | 8 | 6 | +2 | ||||||||||
| 7 | 5 | 2 | 1 | 2 | 9 | 7 | +2 | ||||||||||
| 4 | 5 | 1 | 1 | 3 | 6 | 8 | -2 | ||||||||||
| 0 | 5 | 0 | 0 | 5 | 4 | 15 | -11 |
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Daniel Carvalho Felipe Melo William
Abel Aguilar Jhonny Acosta Víctor Montaño Emanuel Benito Rivas
Juan Carlos Arce Carlos Alberto Cleiton Xavier Dudu Cearense
Roberto Mina Félix Borja
Jefferson Farfán