The Copa Sudamericana is an annual association football tournament established in 2002. The competition is organized by the South American Football Confederation, or CONMEBOL, and it is contested by 39 clubs from its member association. From 2004 to 2008, clubs from the CONCACAF were invited to participate. The finals are contested over two legs, one at each participating club's stadium. San Lorenzo won the inaugural competition in 2002, defeating Atlético Nacional.
Seventeen clubs have won the competition since its inception. Boca Juniors, Independiente, Athletico Paranaense, Independiente del Valle, and LDU Quito hold the record for the most victories, winning the competition two times. Boca Juniors is also the only club to have successfully defended their title. Teams from Argentina have won the competition the most, with ten wins among them.
The current champion is Lanús, who defeated Atlético Mineiro in the 2025 edition.