Club Deportivo Popular Junior F.C. S.A. (Latin American Spanish: [ˈʝunjoɾ]), commonly known as Junior de Barranquilla, by its old name Atlético Junior or simply as Junior, is a Colombian professional football team based in Barranquilla, capital of the department of Atlantico, that currently plays in the Categoría Primera A. Junior is the main Caribbean team in the top flight of Colombian football. As of 2022, they sit in the 25th place of the best South American teams.

The club was founded on 7 August 1924. Known as Los Tiburones (The Sharks), or El Equipo Tiburón (The Shark Team). Junior have won the Colombian professional football championship ten times (1977, 1980, 1993, 1995, 2004 Finalización, 2010 Apertura, 2011 Finalización, 2018 Finalización, 2019 Apertura, and 2023 Finalización). Some of the most notable players that have played for the club include Heleno de Freitas, Garrincha, Dida, Juan Ramón Verón, Efraín Sánchez, Carlos \"El Pibe\" Valderrama, Iván Valenciano, Teófilo Gutiérrez, Carlos Bacca, Julio César Uribe, Giovanni Hernández, Sebastián Viera and Luis Díaz.