The 2025 South American U-20 Championship will be an international football tournament to be held in Venezuela from 23 January to 16 February 2025. The ten national teams involved in the tournament were required to register a squad of a minimum of 19 and a maximum of 23 players, including at least three goalkeepers (Regulations Article 49). Only players in these squads are eligible to take part in the tournament. The tournament exclusively requires players to be born between 1 January 2005 and 31 December 2009 to be eligible, i.e. they must be a maximum of 20 years old and at least 16 years old by the end of the calendar year in which the competition is played (Regulations Article 47).
Each national team had to register its list of up to 23 players in the COMET system and then submit it to CONMEBOL by 7 January 2025, 18:00 PYT (UTC−3) (Regulations Articles 50 and 51). Teams are only permitted to make player replacements in cases of serious injuries or illness up to 24 hours before the start of the tournament (Regulations Article 58). Teams are also permitted to replace an injured goalkeeper with another at any time during the tournament (Regulations Article 59). All the substitutions must have the approval of the CONMEBOL Medical Commission.
The age listed for each player is as of 23 January 2025, the first day of the tournament. A flag is included for coaches who are of a different nationality than their own national team. Players name marked in bold have been capped at full international level.
Group A
Venezuela
Head coach: 
Ricardo Valiño
Uruguay
Head coach: Fabián Coito
Paraguay
Head coach: Aldo Duscher
Chile
Head coach: Nicolás Córdova
Peru
Head coach: José del Solar
Group B
Brazil
Brazil announced their 23-man squad on 20 December 2024.
Head coach: Ramon Menezes
| No. | Pos. | Player | Date of birth (age) | Club |
|---|---|---|---|---|
| 1GK | Felipe Longo | (2005-03-05)5 March 2005 (aged 19) |  Corinthians
| |
| 1GK | Otávio Costa | (2005-12-27)27 December 2005 (aged 19) | Cruzeiro
| |
| 1GK | Robert | (2005-02-03)3 February 2005 (aged 19) | Atlético Mineiro
| |
| 2DF | JP Chermont | (2006-01-18)18 January 2006 (aged 19) | Santos
| |
| 2DF | Pedro Lima | (2006-07-01)1 July 2006 (aged 18) |  Wolverhampton Wanderers
| |
| 2DF | José Guilherme | (2005-03-16)16 March 2005 (aged 19) | Grêmio
| |
| 2DF | Leandrinho | (2005-03-17)17 March 2005 (aged 19) | Vasco da Gama
| |
| 2DF | Anthony | (2005-07-12)12 July 2005 (aged 19) | Goiás
| |
| 2DF | Filipe Bordon | (2005-06-24)24 June 2005 (aged 19) |  Lazio
| |
| 2DF | Iago | (2005-04-18)18 April 2005 (aged 19) | Flamengo
| |
| 2DF | Jair Cunha | (2005-03-07)7 March 2005 (aged 19) | Santos
| |
| 3MF | Breno Bidon | (2005-02-20)20 February 2005 (aged 19) | Corinthians
| |
| 3MF | Gabriel Carvalho | (2007-08-17)17 August 2007 (aged 17) | Internacional
| |
| 3MF | Kauan | (2005-04-16)16 April 2005 (aged 19) | Fortaleza
| |
| 3MF | Gabriel Moscardo | (2005-09-28)28 September 2005 (aged 19) |  Reims
| |
| 4FW | Alisson Santana | (2005-09-21)21 September 2005 (aged 19) | Atlético Mineiro
| |
| 4FW | Deivid Washington | (2005-06-05)5 June 2005 (aged 19) | Chelsea
| |
| 4FW | Gustavo Prado | (2005-06-06)6 June 2005 (aged 19) | Internacional
| |
| 4FW | Nathan Fernandes | (2005-02-16)16 February 2005 (aged 19) | Grêmio
| |
| 4FW | Pedro | (2006-02-05)5 February 2006 (aged 18) |  Zenit Saint Petersburg
| |
| 4FW | Rayan | (2006-08-03)3 August 2006 (aged 18) | Vasco da Gama
| |
| 4FW | Ricardo Mathias | (2006-07-25)25 July 2006 (aged 18) | Internacional
| |
| 4FW | Wesley | (2005-03-05)5 March 2005 (aged 19) |  Al-Nassr
|
Colombia
Head coach: César Torres
Ecuador
Head coach: Miguel Bravo
Argentina
Head coach: Diego Placente
Bolivia
Head coach: Jorge Perrotta
References
- "Reglamento CONMEBOL Sub20 2025" (PDF) (in Spanish). CONMEBOL. 16 October 2024.
- "Seleção Brasileira é convocada para Sul-Americano Sub-20" [Brazil national team called-up for the U-20 South American Championship] (in Brazilian Portuguese). Brazilian Football Confederation. 20 December 2024.
- Alencar, Felipe (20 December 2024). "Com destaque do Corinthians, seleção brasileira sub-20 é convocada para o Sul-Americano" [With Corinthians players, Brazil's U-20 national team is called up for the South American Championship]. www.estadao.com.br (in Brazilian Portuguese). O Estado de S. Paulo.