Below are the rosters for the 2005 South American Youth Championship tournament held in Colombia. The ten national teams involved in the tournament were required to register a squad of 20 players; only players in these squads are eligible to take part in the tournament.
Players name marked in bold have been capped at full international level.
Argentina
Head coach: 
Francisco Ferarro
| No. | Pos. | Player | Date of birth (age) | Caps | Goals | Club |
|---|---|---|---|---|---|---|
| GK | Óscar Ustari | 3 July 1986 (aged 18) | Independiente
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| GK | Nereo Champagne | 20 January 1985 (aged 19) | San Lorenzo
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| DF | Mauro Zanotti | 14 January 1985 (aged 19) |  Ternana
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| DF | Lautaro Formica | 27 January 1986 (aged 18) | Newell's Old Boys
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| DF | Julio Barroso | 16 January 1985 (aged 19) | Boca Juniors
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| DF | Jonathan Maidana | 29 July 1985 (aged 19) | Los Andes
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| DF | David Abraham | 15 July 1986 (aged 18) | Independiente
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| DF | Ezequiel Garay | 10 October 1986 (aged 18) | Newell's Old Boys
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| MF | Juan Manuel Torres | 20 June 1985 (aged 19) | Racing Club
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| MF | Lucas Biglia | 30 January 1986 (aged 18) | Argentinos Juniors
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| MF | Pablo Zabaleta | 16 January 1985 (aged 19) | San Lorenzo
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| MF | Neri Cardozo | 8 August 1986 (aged 18) | Boca Juniors
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| MF | Marcelo Bravo | 10 January 1985 (aged 20) | Vélez Sársfield
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| MF | Pablo Barrientos | 17 January 1985 (aged 19) | San Lorenzo
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| MF | José Ernesto Sosa | 19 June 1985 (aged 19) | Estudiantes
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| FW | Ezequiel Lavezzi | 3 May 1985 (aged 19) | San Lorenzo
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| FW | Mauro Boselli | 22 May 1985 (aged 19) | Boca Juniors
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| FW | Federico Almerares | 2 May 1985 (aged 19) | River Plate
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| FW | Lionel Messi | 24 June 1987 (aged 17) |  Barcelona
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| FW | Hernán Peirone | 28 May 1986 (aged 18) | San Lorenzo
|
(Source for player names:[1])
Chile
Coach: José Sulantay 
| No. | Pos. | Player | Date of birth (age) | Caps | Goals | Club |
|---|---|---|---|---|---|---|
| GK | Carlos Andrés Arias | 4 September 1986 (aged 18) | Universidad Católica
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| GK | José Rosales | 20 September 1986 (aged 18) | O'Higgins
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| DF | Gonzalo Jara | 29 August 1985 (aged 19) | Huachipato
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| DF | Sebastián Montecinos | 12 March 1986 (aged 18) | Colo-Colo
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| DF | Edson Riquelme | 29 August 1985 (aged 19) | Concepción
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| DF | Felipe Muñoz | 4 April 1985 (aged 19) | Colo-Colo
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| DF | Eduardo Salazar | 3 January 1986 (aged 19) | Cobresal
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| MF | Iván Vásquez | 13 August 1985 (aged 19) | Universidad Católica
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| MF | Cristóbal Aliste | 11 January 1985 (aged 20) | Cobresal
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| MF | José Pedro Fuenzalida | 22 February 1985 (aged 19) | Universidad Católica
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| MF | Fernando Meneses | 27 September 1985 (aged 19) | Colo-Colo
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| MF | Carlos Carmona | 21 February 1987 (aged 17) | Coquimbo Unido
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| MF | Pedro Morales | 25 May 1985 (aged 19) | Huachipato
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| MF | Matías Fernández | 15 May 1986 (aged 18) | Colo-Colo
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| MF | Carlos Villanueva | 5 February 1986 (aged 18) | Audax Italiano
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| MF | Ángel Rojas | 10 April 1985 (aged 19) | Universidad de Chile
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| FW | Nicolás Canales | 27 June 1985 (aged 19) | Universidad de Chile
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| FW | Juan Lorca | 15 January 1985 (aged 19) | Colo-Colo
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| FW | Ricardo Parada | 2 January 1985 (aged 20) | Ñublense
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| FW | José Soto | 28 January 1986 (aged 18) | Santiago Wanderers
|
(Source for player names:[2])
Uruguay
Coach: Gustavo Ferrín 
| No. | Pos. | Player | Date of birth (age) | Caps | Goals | Club |
|---|---|---|---|---|---|---|
| GK | Fernando Muslera | June 16, 1986 (aged 18) | Montevideo Wanderers
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| GK | Lucero Álvarez | February 24, 1985 (aged 19) | Nacional
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| DF | Sergio Rodríguez | January 5, 1985 (aged 20) | Danubio
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| DF | Diego Godín | February 16, 1986 (aged 18) | Cerro
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| DF | Miguel Lavié | April 15, 1986 (aged 18) | Peñarol
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| DF | Sebastián Silvera | March 11, 1986 (aged 18) | Deportivo Maldonado
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| DF | Ignacio La Luz | April 19, 1985 (aged 19) | Nacional
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| DF | Martín Rodríguez | February 10, 1985 (aged 19) | River Plate
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| MF | Luis Aguiar | November 17, 1985 (aged 19) | Liverpool
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| MF | Álvaro Pereira | November 28, 1985 (aged 19) | Miramar Misiones
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| MF | Jorge García | August 19, 1986 (aged 18) | Danubio
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| MF | Cristian Rodríguez | September 30, 1985 (aged 19) | Peñarol
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| MF | Leandro Ezquerra | June 5, 1986 (aged 18) | River Plate
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| MF | Juan Ángel Albín | July 17, 1986 (aged 18) | Nacional
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| MF | Jorge Rodríguez | January 13, 1985 (aged 19) | Racing Club
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| MF | Ribair Rodríguez | October 4, 1987 (aged 17) | Danubio
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| FW | Danilo Peinado | February 15, 1985 (aged 19) | Defensor Sporting
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| FW | Álvaro Navarro | January 28, 1985 (aged 19) | Defensor Sporting
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| FW | Christian Stuani | October 12, 1986 (aged 18) | Danubio
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| FW | Matías Alonso | April 16, 1985 (aged 19) | River Plate
|
(Source for player names:[3])
References
- ^ "Argentina da nómina para Sudamericano Sub 20". emol.com. 6 January 2005. Retrieved 6 July 2012.
- ^ "Sub 20: Chile lleva otra vez la ilusión en las maletas". emol.com. 12 January 2005. Retrieved 6 July 2012.
- ^ "Se armó el plantel Celeste". ESPN. 10 January 2005. Retrieved 5 July 2012.