The following are the squads of national teams that played in the 1919 South American Championship. The participating countries were Argentina, Brazil, Chile and Uruguay.^[1] The teams played in a single round-robin tournament, earning two points for a win, one point for a draw, and zero points for a loss.

Head Coach: Federal Technical Committee ^[2]

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No.	Pos.	Player	Date of birth (age)	Caps	Goals	Club
—	1GK	Andrés Barcos		0	0	Estudiantes (LP)
—	4FW	Enrique Brichetto		0	0	Boca Juniors
—	4FW	Pedro Calomino		0	0	Boca Juniors
—	2DF	Roberto Castagnola		0	0	Racing Club
—	3MF	Juan Cilley		0	0	San Isidro
—	4FW	Edwin Clarke		0	0	Porteño
—	2DF	Antonio Cortella		0	0	Boca Juniors
—	4FW	Miguel Faivre		0	0	Gimnasia y Esgrima (Rosario)
—	3MF	Roberto Felices		0	0	Gimnasia y Esgrima (LP)
—	1GK	Carlos Isola		0	0	River Plate
—	4FW	Carlos Izaguirre		0	0	Porteño
—	4FW	José Laiolo		0	0	River Plate
—	4FW	Alfredo Martín		0	0	Boca Juniors
—	3MF	Pedro Martínez		0	0	Huracán
—	2DF	Ernesto Matozzi		0	0	Estudiantil Porteño
—	4FW	Juan Perinetti		0	0	Racing Club
—	2DF	Armando Reyes		0	0	Racing Club
—	4FW	Nicolás Rofrano		0	0	River Plate
—	4FW	Adolfo Taggino		0	0	River Plate
—	3MF	Emilio Sande		0	0	Porteño
—	3MF	Ernesto Scoffano		0	0	Eureka
—	3MF	Eduardo Uslenghi		0	0	Porteño

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Head coach: Haroldo Domingues

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No.	Pos.	Player	Date of birth (age)	Caps	Goals	Club
—	3MF	Amílcar		0	0	Corinthians
—	4FW	Arnaldo		0	0	Santos
—	4FW	Arlindo		0	0	América
—	2DF	Bianco		0	0	Palestra Itália
—	4FW	Carregal		0	{{{goals}}}	Flamengo
—	1GK	Dyonísio		0	0	Ypiranga
—	3MF	Fortes		0	0	Fluminense.
—	4FW	Friedenreich		0	0	Paulistano
—	3MF	Galo		0	0	Flamengo
—	4FW	Haroldo		0	0	Santos
—	4FW	Heitor		0	0	Palestra Itália
—	3MF	Laís		0	0	Fluminense
—	1GK	Marcos		0	0	Fluminense
—	3MF	Martins		0	0	São Cristóvão
—	4FW	Luís Menezes		0	0	Botafogo
—	4FW	Millon		0	0	Santos
—	4FW	Neco		0	0	Corinthians
—	2DF	Palamone		0	0	Mckenzie
—	3MF	Picagli		0	0	Palestra Itália
—	2DF	Píndaro		0	0	Flamengo
—	3MF	Sérgio		0	0	Paulistano

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Head Coach: Héctor Parra

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No.	Pos.	Player	Date of birth (age)	Caps	Goals	Club
—	3MF	Juan Alvarado		0	0	Santiago Wanderers
—	4FW	Telésforo Báez		0	0	Santiago Wanderers
—	3MF	Héctor Baeza		0	0	Deportes Rancagua
—	1GK	Guillermo Bernal		0	0	Loma Blanca
—	4FW	Carlos Del Río		0	0	Liceo de Concepción
—	3MF	Aurelio Domínguez		0	0	Artillero de Costa
—	4FW	Guillermo Frez		0	0	Magallanes Quillota
—	4FW	Alfredo France		0	1	Gold Cross
—	4FW	Eufemio Fuentes		0	0	Estrella del Mar
—	2DF	Francisco Gatica		0	0	Santiago Wanderers
—	2DF	Pedro Gatica		0	0	Eleuterio Ramírez
—	3MF	Carlos González		0	0	Artillero de Costa
—	1GK	Manuel Guerrero		0	0	La Cruz
—	4FW	Horacio Muñoz		0	0	Fernández Vial
—	2DF	Ulises Poirier		0	0	La Cruz
—	4FW	Víctor Varas		0	0	Artillero de Costa

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Head Coach: Severino Castillo

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No.	Pos.	Player	Date of birth (age)	Caps	Goals	Club
—	2DF	José Benincasa		0	0	Peñarol
—	1GK	Roberto Chery		0	0	Peñarol
—	3MF	Juan Delgado		0	0	Peñarol
—	2DF	Alfredo Foglino		0	0	Club Nacional de Football
—	4FW	Isabelino Gradín		0	0	Peñarol
—	4FW	Rodolfo Marán		0	0	Club Nacional de Football
—	2DF	Ricardo Medina		0	0	Central
—	2DF	Rogelio Naguil		0	0	Club Nacional de Football
—	3MF	José Pérez		0	0	Peñarol
—	3MF	Omar Pérez		0	0	Montevideo Wanderers
—	4FW	Angel Romano		0	0	Club Nacional de Football
—	1GK	Cayetano Saporiti		0	0	Montevideo Wanderers
—	4FW	Héctor Scarone		0	0	Club Nacional de Football
—	3MF	Pascual Somma		0	0	Club Nacional de Football
—	3MF	José Vanzzino		0	0	Club Nacional de Football
—	2DF	Manuel Varela		0	0	Peñarol
—	2DF	Alfredo Zibechi		0	0	Club Nacional de Football

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