| No. | Pos | Full Name | Birth Date (Age) | Caps | Club | Country | ||
| ARGENTINA (Group 1) | ||||||||
| Head coach: Francisco Olazar and Juan José Tramutola | ||||||||
| - | GK | Ángel Bossio | 5 May 1905 (aged 25) | Talleres | Argentina | |||
| - | GK | Juan Botasso | 23 October 1908 (aged 21) | Quilmes | Argentina | |||
| - | FW | Roberto Cherro | 23 September 1907 (aged 22) | Boca Juniors | Argentina | |||
| - | DF | Alberto Chividini | 23 February 1907 (aged 23) | Central Norte Tucumán | Argentina | |||
| - | FW | Attilio Demaría | 19 March 1909 (aged 21) | Estudiantil Porteño | Argentina | |||
| - | DF | José Della Torre | 26 March 1906 (aged 24) | Racing | Argentina | |||
| - | DF | Juan Evaristo | 20 June 1902 (aged 28) | Sportivo Barracas | Argentina | |||
| - | FW | Mario Evaristo | 10 December 1908 (aged 21) | Boca Juniors | Argentina | |||
| - | FW | Manuel Ferreira | 22 October 1905 (aged 24) | Estudiantes de La Plata | Argentina | |||
| - | MF | Luis Monti | 15 May 1901 (aged 29) | San Lorenzo | Argentina | |||
| - | DF | Ramón Muttis | 12 March 1899 (aged 31) | Boca Juniors | Argentina | |||
| - | DF | Rodolfo Orlandini | 1 January 1905 (aged 25) | Estudiantil Porteño | Argentina | |||
| - | DF | Fernando Paternoster | 24 May 1903 (aged 27) | Racing | Argentina | |||
| - | FW | Natalio Perinetti | 28 December 1900 (aged 29) | Racing | Argentina | |||
| - | FW | Carlos Peucelle | 13 September 1908 (aged 21) | Sportivo Buenos Aires | Argentina | |||
| - | DF | Edmundo Piaggio | 3 October 1910 (aged 19) | Lanús | Argentina | |||
| - | FW | Alejandro Scopelli | 12 May 1908 (aged 22) | Estudiantes de La Plata | Argentina | |||
| - | FW | Carlos Spadaro | 5 February 1902 (aged 28) | Lanús | Argentina | |||
| - | FW | Guillermo Stábile | 17 January 1905 (aged 25) | Huracán | Argentina | |||
| - | MF | Pedro Suárez | 21 December 1909 (aged 20) | Boca Juniors | Argentina | |||
| - | FW | Francisco Varallo | 5 February 1910 (aged 20) | Gimnasia y Esgrima La Plata | Argentina | |||
| - | DF | Adolfo Zumelzú | 5 January 1902 (aged 28) | Estudiantil Porteño | Argentina | |||
| CHILE (Group 1) | ||||||||
| Head coach: György Orth (Hungary) | ||||||||
| - | FW | Juan Aguilera | Audax Italiano | Chile | ||||
| - | FW | Guillermo Arellano | 21 August 1908 (aged 21) | Colo-Colo | Chile | |||
| - | DF | Ernesto Chaparro | 4 January 1901 (aged 29) | Colo-Colo | Chile | |||
| - | FW | Arturo Coddou | Arturo Fernández Vial | Chile | ||||
| - | GK | Roberto Cortés | 2 February 1905 (aged 25) | Colo-Colo | Chile | |||
| - | MF | Humberto Elgueta | Santiago Wanderers | Chile | ||||
| - | GK | Cesar Espinoza | Santiago Wanderers | Chile | ||||
| - | DF | Víctor Morales | 10 May 1905 (aged 25) | Colo-Colo | Chile | |||
| - | FW | Horacio Muñoz | Arturo Fernández Vial | Chile | ||||
| - | FW | Tomás Ojeda | 20 April 1910 (aged 20) | Boca Juniors Antofagasta | Chile | |||
| - | DF | Ulises Poirier | 2 February 1897 (aged 33) | La Cruz Valparaiso | Chile | |||
| - | DF | Guillermo Riveros | 10 February 1902 (aged 28) | La Cruz Valparaiso | Chile | |||
| - | MF | Guillermo Saavedra | 5 November 1903 (aged 26) | Colo-Colo | Chile | |||
| - | FW | Carlos Schneeberger | 21 June 1902 (aged 28) | Colo-Colo | Chile | |||
| - | FW | Guillermo Subiabre | 25 February 1902 (aged 28) | Colo-Colo | Chile | |||
| - | MF | Arturo Torres | 20 October 1906 (aged 23) | Colo-Colo | Chile | |||
| - | MF | Casimiro Torres | 1906 | Everton | Chile | |||
| - | FW | Carlos Vidal | 24 February 1902 (aged 28) | Audax Italiano | Chile | |||
| - | FW | Eberardo Villalobos | 1 April 1908 (aged 22) | Rangers | Chile | |||
| FRANCE (Group 1) | ||||||||
| Head coach: Raoul Caudron | ||||||||
| - | DF | Numa Andoire | 19 March 1908 (aged 22) | 0 | FC Antibes | France | ||
| - | DF | Marcel Capelle | 11 December 1904 (aged 25) | 4 | Racing Club de France | France | ||
| - | MF | Augustin Chantrel | 11 November 1906 (aged 23) | 8 | CASG Paris | France | ||
| - | FW | Edmond Delfour | 1 November 1907 (aged 22) | 6 | Racing Club de France | France | ||
| - | MF | Célestin Delmer | 15 February 1907 (aged 23) | 2 | Amiens AC | France | ||
| - | FW | Marcel Langiller | 2 June 1908 (aged 22) | 8 | Excelsior AC Roubaix | France | ||
| - | MF | Jean Laurent | 30 December 1906 (aged 23) | 3 | CA Paris | France | ||
| - | FW | Lucien Laurent | 10 December 1907 (aged 22) | 2 | CA Paris | France | ||
| - | FW | Ernest Libérati | 22 March 1906 (aged 24) | 3 | Amiens AC | France | ||
| - | FW | André Maschinot | 28 June 1903 (aged 27) | 3 | FC Sochaux | France | ||
| - | DF | Étienne Mattler | 25 December 1905 (aged 24) | 1 | FC Sochaux | France | ||
| - | MF | Marcel Pinel | 8 July 1908 (aged 22) | 3 | Red Star Paris | France | ||
| - | GK | André Tassin | 1902 | 0 | Racing Club de France | France | ||
| - | GK | Alex Thépot | 30 July 1906 (aged 23) | 12 | Red Star Paris | France | ||
| - | FW | Émile Veinante | 12 June 1907 (aged 23) | 3 | Racing Club de France | France | ||
| - | MF | Alexandre Villaplane | 12 September 1905 (aged 24) | 22 | Racing Club de France | France | ||
| MEXICO (Group 1) | ||||||||
| Head coach: Juan Luque de Serralonga | ||||||||
| - | MF | Efraín Amézcua | Atlante | Mexico | ||||
| - | GK | Oscar Bonfiglio | 5 October 1905 (aged 24) | Marte | Mexico | |||
| - | FW | Juan Carreño | 14 August 1907 (aged 22) | Atlante | Mexico | |||
| - | FW | Jesús Castro | Atlante | Mexico | ||||
| - | DF | Rafael Garza Gutiérrez | 13 December 1896 (aged 33) | América | Mexico | |||
| - | DF | Francisco Garza Gutiérrez | 1904 | América | Mexico | |||
| - | FW | Roberto Gayón | 1905 | América | Mexico | |||
| - | FW | Hilario López | 18 November 1907 (aged 22) | Marte | Mexico | |||
| - | FW | Dionisio Mejía | 6 January 1907 (aged 23) | Atlante | Mexico | |||
| - | FW | Felipe Olivares | 1905 | Atlante | Mexico | |||
| - | FW | Luis Pérez | 1907 | Necaxa | Mexico | |||
| - | MF | Raymundo Rodríguez | 1905 | Marte | Mexico | |||
| - | MF | Felipe Rosas | 5 February 1910 (aged 20) | Atlante | Mexico | |||
| - | DF | Manuel Rosas | 17 April 1912 (aged 18) | Atlante | Mexico | |||
| - | FW | José Ruíz | 1904 | Necaxa | Mexico | |||
| - | MF | Alfredo Sánchez | América | Mexico | ||||
| - | GK | Isidoro Sota | 1902 | América | Mexico | |||
| YUGOSLAVIA (Group 2) | ||||||||
| Head coach: Boško Simonović | ||||||||
| - | MF | Milorad Arsenijević | 6 June 1906 (aged 24) | 16 | SK Beograd | Yugoslavia | ||
| - | FW | Ivan Bek | 29 October 1909 (aged 20) | 2 | FC Sète | France | ||
| - | MF | Momčilo Đokić | 27 February 1911 (aged 19) | 2 | Jugoslavija Beograd | Yugoslavia | ||
| - | FW | Branislav Hrnjiček | 5 June 1908 (aged 22) | 4 | Jugoslavija Beograd | Yugoslavia | ||
| - | DF | Milutin Ivković | 3 March 1906 (aged 24) | 22 | ASK Beograd | Yugoslavia | ||
| - | GK | Milovan Jakšić | 21 September 1909 (aged 20) | 2 | ASK Beograd | Yugoslavia | ||
| - | FW | Blagoje Marjanović | 9 September 1907 (aged 22) | 15 | SK Beograd | Yugoslavia | ||
| - | DF | Dušan Marković | 9 March 1906 (aged 24) | 0 | Vojvodina Novi Sad | Yugoslavia | ||
| - | DF | Dragoslav Mihajlović | 13 December 1906 (aged 23) | 1 | BSK Beograd | Yugoslavia | ||
| - | FW | Dragutin Najdanović | 15 April 1908 (aged 22) | 3 | BSK Beograd | Yugoslavia | ||
| - | FW | Branislav Sekulić | 29 October 1906 (aged 23) | 3 | SC Montpellier | France | ||
| - | MF | Teofilo Spasojević | 21 January 1909 (aged 21) | 1 | Jugoslavija Beograd | Yugoslavia | ||
| - | MF | Ljubiša Stefanović | 4 January 1910 (aged 20) | 0 | FC Sète | France | ||
| - | GK | Milan Stojanović | 0 | BSK Beograd | Yugoslavia | |||
| - | FW | Aleksandar Tirnanić | 15 July 1911 (aged 18) | 5 | BSK Beograd | Yugoslavia | ||
| - | DF | Dragomir Tošić | 8 November 1909 (aged 20) | 0 | BSK Beograd | Yugoslavia | ||
| - | FW | Đorđe Vujadinović | 6 December 1909 (aged 20) | 4 | BSK Beograd | Yugoslavia | ||
| BRAZIL (Group 2) | ||||||||
| Head coach: Píndaro de Carvalho Rodrigues | ||||||||
| - | FW | Araken | 17 July 1905 (aged 24) | Santos | Brazil | |||
| - | FW | Benedicto | 10 May 1910 (aged 20) | Botafogo | Brazil | |||
| - | MF | Benevenuto | 8 August 1903 (aged 26) | Flamengo | Brazil | |||
| - | DF | Brilhante | 5 November 1904 (aged 25) | Vasco da Gama | Brazil | |||
| - | FW | Carvalho Leite | 25 June 1912 (aged 18) | Botafogo | Brazil | |||
| - | FW | Doca | 7 April 1903 (aged 27) | São Cristóvão | Brazil | |||
| - | MF | Fausto | 28 January 1905 (aged 25) | Vasco da Gama | Brazil | |||
| - | MF | Fernando | 1 March 1906 (aged 24) | Fluminense | Brazil | |||
| - | MF | Fortes | 9 September 1901 (aged 28) | Fluminense | Brazil | |||
| - | MF | Hermógenes | 4 November 1908 (aged 21) | América | Brazil | |||
| - | DF | Itália | 22 May 1907 (aged 23) | Vasco da Gama | Brazil | |||
| - | MF | Ivan Mariz | 16 May 1910 (aged 20) | Fluminense | Brazil | |||
| - | GK | Joel | 1 May 1904 (aged 26) | América | Brazil | |||
| - | FW | Manoelzinho | 22 August 1907 (aged 22) | Goytacaz | Brazil | |||
| - | FW | Moderato | 14 July 1902 (aged 27) | Flamengo | Brazil | |||
| - | FW | Nilo | 3 April 1903 (aged 27) | Botafogo | Brazil | |||
| - | DF | Oscarino | 17 January 1907 (aged 23) | Ypiranga Niterói | Brazil | |||
| - | MF | Pamplona | 24 March 1904 (aged 26) | Botafogo | Brazil | |||
| - | FW | Poly | 26 January 1909 (aged 21) | Americano | Brazil | |||
| - | FW | Preguinho | 8 February 1905 (aged 25) | Fluminense | Brazil | |||
| - | FW | Russinho | 18 December 1902 (aged 27) | Vasco da Gama | Brazil | |||
| - | FW | Teóphilo | 11 April 1900 (aged 30) | São Cristóvão | Brazil | |||
| - | GK | Velloso | 25 September 1908 (aged 21) | Fluminense | Brazil | |||
| - | DF | Zé Luiz | 16 November 1904 (aged 25) | São Cristóvão | Brazil | |||
| BOLIVIA (Group 2) | ||||||||
| Head coach: Ulises Saucedo | ||||||||
| - | FW | Mario Alborta | 1904 | 7 | Club Bolívar | Bolivia | ||
| - | MF | Juan Argote | 1906 | 0 | Club Bolívar | Bolivia | ||
| - | GK | Jesús Bermúdez | 1902 | 6 | Oruro Royal | Bolivia | ||
| - | MF | Miguel Brito | 0 | Oruro Royal | Bolivia | |||
| - | FW | José Bustamante | 1907 | 7 | Litoral | Bolivia | ||
| - | DF | Casiano Chavarría | 3 August 1901 (aged 28) | 6 | Calavera La Paz | Bolivia | ||
| - | DF | Segundo Durandal | 17 March 1912 (aged 18) | 0 | CS San Jose Oruro | Bolivia | ||
| - | FW | René Fernández | 1906 | 0 | Alianza Oruro | Bolivia | ||
| - | FW | Gumersindo Gómez | 1907 | 0 | Oruro Royal | Bolivia | ||
| - | MF | Diógenes Lara | 1902 | 7 | Club Bolívar | Bolivia | ||
| - | FW | Rafael Méndez | 1904 | 7 | Universitario La Paz | Bolivia | ||
| - | GK | Miguel Murillo | 0 | Club Bolívar | Bolivia | |||
| - | MF | Constantino Noya | 0 | Oruro Royal | Bolivia | |||
| - | FW | Eduardo Reyes Ortíz | 1907 | 0 | The Strongest | Bolivia | ||
| * | DF | Luis Reyes Peñaranda | 0 | Universitario La Paz | Bolivia | |||
| - | MF | Renato Sáinz | 14 December 1899 (aged 30) | The Strongest | Bolivia | |||
| - | MF | Jorge Valderrama | 12 December 1906 (aged 23) | 5 | Oruro Royal | Bolivia | ||
| URUGUAY (Group 3) | ||||||||
| Head coach: Alberto Suppici | ||||||||
| - | MF | José Andrade | 22 November 1901 (aged 28) | 29 | Nacional | Uruguay | ||
| - | FW | Peregrino Anselmo | 3 August 1904 (aged 25) | 8 | Peñarol | Uruguay | ||
| - | GK | Enrique Ballesteros | 18 January 1905 (aged 25) | 19 | Rampla Juniors | Uruguay | ||
| - | FW | Juan Carlos Calvo | 1906 | 0 | Miramar Misiones | Uruguay | ||
| - | GK | Miguel Capuccini | 5 January 1904 (aged 26) | 6 | Peñarol | Uruguay | ||
| - | FW | Héctor Castro | 29 November 1904 (aged 25) | 17 | Nacional | Uruguay | ||
| - | FW | Pedro Cea | 1 September 1900 (aged 29) | 21 | Nacional | Uruguay | ||
| - | FW | Pablo Dorado | 22 June 1908 (aged 22) | 2 | Bella Vista | Uruguay | ||
| - | MF | Lorenzo Fernández | 20 May 1900 (aged 30) | 20 | Peñarol | Uruguay | ||
| - | MF | Álvaro Gestido | 17 May 1907 (aged 23) | 10 | Peñarol | Uruguay | ||
| - | FW | Santos Iriarte | 2 November 1902 (aged 27) | 5 | Racing Club | Uruguay | ||
| - | DF | Ernesto Mascheroni | 21 November 1907 (aged 22) | 0 | Olimpia | Uruguay | ||
| - | MF | Ángel Melogno | 22 March 1905 (aged 25) | 5 | Bella Vista | Uruguay | ||
| - | DF | José Nasazzi | 24 May 1901 (aged 29) | 28 | Bella Vista | Uruguay | ||
| - | FW | Pedro Petrone | 11 May 1904 (aged 26) | 27 | Nacional | Uruguay | ||
| - | MF | Conduelo Píriz | 1905 | 7 | Nacional | Uruguay | ||
| - | DF | Emilio Recoba | 3 November 1904 (aged 25) | 5 | Nacional | Uruguay | ||
| - | MF | Carlos Riolfo | 5 November 1905 (aged 24) | 2 | Peñarol | Uruguay | ||
| - | FW | Zoilo Saldombide | 18 March 1905 (aged 25) | 14 | Montevideo Wanderers | Uruguay | ||
| - | FW | Héctor Scarone | 26 November 1898 (aged 31) | 48 | Nacional | Uruguay | ||
| - | DF | Domingo Tejera | 22 July 1899 (aged 30) | 15 | Montevideo Wanderers | Uruguay | ||
| - | FW | Santos Urdinarán | 30 March 1900 (aged 30) | 19 | Nacional | Uruguay | ||
| ROMANIA (Group 3) | ||||||||
| Head coach: Costel Rădulescu | ||||||||
| - | FW | Ştefan Barbu | 2 March 1908 (aged 22) | 4 | Gloria Arad | Romania | ||
| - | MF | Alexandru Borbely | 0 | Belvedere Bucureşti | Romania | |||
| - | DF | Rudolf Bürger | 31 October 1908 (aged 21) | 4 | Chinezul Timişoara | Romania | ||
| - | DF | Iosif Czako | 11 June 1906 (aged 24) | 1 | UDR Reşiţa | Romania | ||
| - | FW | Adalbert Deşu | 1909 | 4 | UDR Reşiţa | Romania | ||
| - | MF | Alfred Eisenbeisser | 7 April 1908 (aged 22) | 0 | Dragoş Vodă Cernăuţi | Romania | ||
| - | FW | Andrei Glanzmann | 27 March 1907 (aged 23) | 0 | FC Oradea | Romania | ||
| - | FW | Elemer Kocsis | 27 February 1910 (aged 20) | 0 | FC Bihor | Romania | ||
| - | FW | Miklós Kovács | 23 December 1911 (aged 18) | 3 | Banatul Timişoara | Romania | ||
| - | GK | Ion Lǎpuşneanu | 8 December 1908 (aged 21) | 3 | Sportul Studenţesc | Romania | ||
| - | MF | Ladislau Raffinsky | 23 April 1905 (aged 25) | 4 | Juventus Bucuresti | Romania | ||
| - | MF | Corneliu Robe | 23 May 1908 (aged 22) | 0 | Olympia Bucureşti | Romania | ||
| - | FW | Constantin Stanciu | 1911 | 4 | Venus Bucureşti | Romania | ||
| - | MF | Petre Steinbach | 1 January 1906 (aged 24) | 0 | FC Unirea Tricolor Bucureşti | Romania | ||
| - | DF | Adalbert Steiner | 24 January 1907 (aged 23) | 9 | Chinezul Timişoara | Romania | ||
| - | MF | Rudolf Steiner | 5 | Chinezul Timişoara | Romania | |||
| - | FW | Ilie Subăşeanu | 1906 | 2 | Olympia Bucureşti | Romania | ||
| - | MF | Emerich Vogl | 12 August 1905 (aged 24) | 10 | Juventus Bucureşti | Romania | ||
| - | FW | Rudolf Wetzer | 17 March 1901 (aged 29) | 12 | Juventus Bucureşti | Romania | ||
| - | GK | Samuel Zauber | 1 January 1901 (aged 29) | 0 | Maccabi Bucureşti | Romania | ||
| PERU (Group 3) | ||||||||
| Head coach: Spain Francisco Bru | ||||||||
| - | MF | Eduardo Astengo | Universitario de Deportes | Peru | ||||
| - | FW | Carlos Cillóniz | Universitario de Deportes | Peru | ||||
| - | DF | Mario de las Casas | 31 January 1901 (aged 29) | Lawn Tennis de la Exposición | Peru | |||
| - | MF | Alberto Denegri | Alianza Lima | Peru | ||||
| - | DF | Arturo Fernández | 10 April 1910 (aged 20) | Universitario de Deportes | Peru | |||
| - | MF | Plácido Galindo | 9 March 1906 (aged 24) | Universitario de Deportes | Peru | |||
| - | MF | Domingo García | 1904 | Alianza Lima | Peru | |||
| - | FW | Jorge Góngora | Universitario de Deportes | Peru | ||||
| - | FW | José María Lavalle | 5 June 1911 (aged 19) | Alianza Lima | Peru | |||
| - | FW | Julio Lores | 15 September 1908 (aged 21) | Association FBC | Peru | |||
| - | DF | Antonio Maquilón | 29 November 1902 (aged 27) | Tarapacá Ferroviario | Peru | |||
| - | FW | Demetrio Neyra | 1906 | Alianza Lima | Peru | |||
| - | FW | Pablo Pacheco | Universitario de Deportes | Peru | ||||
| - | GK | Jorge Pardon | 19 December 1909 (aged 20) | Sporting Tabaco | Peru | |||
| - | MF | Julio Quintana | Alianza Lima | Peru | ||||
| - | FW | Lizardo Rodríguez Nue | 30 August 1910 (aged 19) | Progreso | Peru | |||
| - | FW | Jorge Sarmiento | Alianza Lima | Peru | ||||
| - | DF | Alberto Soria | 1906 | Alianza Lima | Peru | |||
| - | FW | Luis Souza Ferreira | 30 June 1904 (aged 26) | Universitario de Deportes | Peru | |||
| - | GK | Juan Valdivieso | 6 May 1910 (aged 20) | Alianza Lima | Peru | |||
| - | MF | Juan Alfonso Valle | 1905 | Italiano Lima | Peru | |||
| - | FW | Alejandro Villanueva | 4 June 1908 (aged 22) | Alianza Lima | Peru | |||
| UNITED STATES of AMERICA (Group 4) | ||||||||
| Head coach: Robert Millar | ||||||||
| - | MF | Andy Auld | 26 January 1900 (aged 30) | 1 | Providence Gold Bugs | United States | ||
| - | FW | Mike Bookie | 12 September 1904 (aged 25) | 0 | Cleveland Slavia | United States | ||
| - | MF | Jim Brown | 31 December 1908 (aged 21) | 3 | New York Giants | United States | ||
| - | GK | Jimmy Douglas | 12 January 1898 (aged 32) | 5 | New York Nationals | United States | ||
| - | FW | Tom Florie | 6 September 1897 (aged 32) | 2 | New Bedford Whalers | United States | ||
| - | DF | Jimmy Gallagher | 7 June 1901 (aged 29) | 2 | New York Nationals | United States | ||
| - | DF | James Gentle | 21 July 1904 (aged 25) | 0 | Philadelphia Cricket Club | United States | ||
| - | MF | Billy Gonsalves | 10 August 1908 (aged 21) | 0 | Fall River Marksmen | United States | ||
| - | FW | Bart McGhee | 30 April 1899 (aged 31) | 0 | New York Nationals | United States | ||
| - | DF | George Moorhouse | 4 May 1901 (aged 29) | 1 | New York Giants | United States | ||
| - | MF | Arnie Oliver | 22 May 1907 (aged 23) | 0 | Providence Gold Bugs | United States | ||
| - | FW | Bert Patenaude | 4 November 1909 (aged 20) | 0 | Fall River Marksmen | United States | ||
| - | MF | Philip Slone | 20 January 1907 (aged 23) | 0 | New York Giants | United States | ||
| - | DF | Raphael Tracey | 6 February 1904 (aged 26) | 0 | Ben Millers | United States | ||
| - | DF | Frank Vaughn | 18 February 1902 (aged 28) | 0 | Ben Millers | United States | ||
| - | DF | Alexander Wood | 12 June 1907 (aged 23) | 0 | Detroit Holley Carburetor | United States | ||
| PARAGUAY (Group 4) | ||||||||
| Head coach: José Durand Laguna | ||||||||
| - | MF | Francisco Aguirre | 1908 | Olimpia | Paraguay | |||
| - | GK | Pedro Benítez | Libertad | Paraguay | ||||
| - | MF | Santiago Benítez | 1903 | Olimpia | Paraguay | |||
| - | FW | Delfín Benítez Cáceres | 24 September 1910 (aged 19) | Libertad | Paraguay | |||
| - | FW | Saguier Carreras | Sportivo Luqueño | Paraguay | ||||
| - | DF | Eustacio Chamorro | Presidente Hayes | Paraguay | ||||
| - | GK | Modesto Denis | 1901 | Nacional | Paraguay | |||
| - | MF | Eusebio Díaz | 1901 | Guaraní | Paraguay | |||
| - | FW | Diógenes Domínguez | 1902 | Sportivo Luqueño | Paraguay | |||
| - | MF | Romildo Etcheverry | 1907 | Olimpia | Paraguay | |||
| - | MF | Diego Florentín | River Plate | Paraguay | ||||
| - | DF | Salvador Flores | 1906 | Cerro Porteño | Paraguay | |||
| - | MF | Tranquilino Garcete | 1907 | Libertad | Paraguay | |||
| - | FW | Aurelio González | 25 September 1905 (aged 24) | Olimpia | Paraguay | |||
| - | DF | José Miracca | 23 September 1903 (aged 26) | Nacional | Paraguay | |||
| - | FW | Lino Nessi | 1904 | Libertad | Paraguay | |||
| - | DF | Quiterio Olmedo | 21 December 1907 (aged 22) | Nacional | Paraguay | |||
| - | FW | Amadeo Ortega | River Plate | Paraguay | ||||
| - | FW | Bernabé Rivera | Sportivo Luqueño | Paraguay | ||||
| - | FW | Gerardo Romero | 1906 | Libertad | Paraguay | |||
| - | FW | Luis Vargas Peña | 1905 | Olimpia | Paraguay | |||
| - | FW | Jacinto Villalba | Cerro Porteño | Paraguay | ||||
| BELGIUM (Group 4) | ||||||||
| Head coach: Hector Goetinck | ||||||||
| - | FW | Ferdinand Adams | 3 May 1903 (aged 27) | 21 | SC Anderlechtois | Belgium | ||
| - | GK | Arnold Badjou | 26 June 1909 (aged 21) | 3 | Daring Club de Bruxelles Societe Royale | Belgium | ||
| - | MF | Pierre Braine | 26 October 1900 (aged 29) | 42 | Royal Beerschot AC | Belgium | ||
| - | MF | Alexis Chantraine | 16 March 1901 (aged 29) | 0 | Royal FC Liegeois | Belgium | ||
| - | GK | Jean De Bie | 9 May 1892 (aged 38) | 37 | Royal Racing Club de Bruxelles | Belgium | ||
| - | MF | Jean De Clercq | 17 May 1905 (aged 25) | 5 | Royal Antwerp FC | Belgium | ||
| - | DF | Henri De Deken | 3 August 1907 (aged 22) | 0 | Royal Antwerp FC | Belgium | ||
| - | FW | Gérard Delbeke | 1 September 1903 (aged 26) | 0 | Royal FC Brugeois | Belgium | ||
| - | FW | Jan Diddens | 14 September 1908 (aged 21) | 21 | RC de Malines Societe Royale | Belgium | ||
| - | MF | August Hellemans | 14 September 1907 (aged 22) | 4 | Royal FC Malinois | Belgium | ||
| - | DF | Nic Hoydonckx | 29 December 1900 (aged 29) | 19 | FC Excelsior Hasselt | Belgium | ||
| - | FW | Jacques Moeschal | 6 September 1900 (aged 29) | 15 | Royal Racing Club de Bruxelles | Belgium | ||
| - | DF | Theodore Nouwens | 17 February 1908 (aged 22) | 10 | RC de Malines Societe Royale | Belgium | ||
| - | FW | André Saeys | 20 February 1911 (aged 19) | 0 | Royal CS Brugeois | Belgium | ||
| - | FW | Louis Versyp | 5 December 1908 (aged 21) | 7 | Royal FC Brugeois | Belgium | ||
| - | FW | Bernard Voorhoof | 10 May 1910 (aged 20) | 6 | Liersche Sportkring | Belgium | ||
| Note: Rosters include reserves, alternates, and preselected players that may have participated in qualifiers and/or pre-tournament friendlies but not in the Finals themselves. | ||||||||