In the early 1920s a team named Juventus came into being at the Colegio Salesiano in the San Roque neighborhood of Barranquilla, made up primarily of Italian immigrants. Soon after its launch the name was changed to the Spanish Juventud, though both translate the same in English: youth. In August 1924 some of the younger members of Juventud along with other young men from San Roque created an offshoot of Juventud: Juventud Infantil. Around the 1940s (and the club's name was shortened to simply Junior) they became known as one of the country's best clubs. In 1945 the players of Junior were selected to represent Colombia at the South American Championship (now known as the
Copa América), finishing a respectable fifth (though losing 7–0 to Uruguay and 9–1 to Argentina along the way). In 1949 they were again selected to represent Colombia (finishing last place) but this time their decision to play would have its consequences. In 1948 Junior were founder members of
División Mayor del Fútbol Profesional Colombiano (commonly known as the Dimayor). Their debut match as a professional outfit came at home on 15 August 1948, against
Deportivo Cali, which ended in a 2–0 victory for the home side. Early the following year they were again chosen to play as the de facto Colombia national team. Because of ongoing strife between Adefutbol (the original amateur Colombian football association) and the Dimayor, Junior were threatened with expulsion from the Dimayor if they participated. They went ahead and did so and were initially given a two-year suspension from the league. This was later reduced to one year and they returned to the Dimayor for the 1950 season. This was the golden age of Colombian football commonly referred to as
El Dorado, a time when the Dimayor was a "rebel league" unaffiliated with FIFA and many high-profile players from around the world broke their contracts and came to play. Junior were no exception, picking up players from Brazil, Argentina, Hungary and the Czech Republic in these years. But El Dorado eventually came to an end for Colombian football. A way ahead surfaced in the mid-1960s when a rift had again developed in Colombian football, this time between Adefutbol and the newly created
Federación Colombiana de Fútbol, an organization devoted to developing professional football in the country. Adefutbol was still the official body in the eyes of
FIFA and organized the national team in this period and additionally Colombian clubs did not enter the Copa Libertadores. Peace was finally made and the bulk of the amateur team that had attempted to qualify for the England World Cup signed up for Junior, who returned to the Dimayor in 1966. Junior have remained in the top level ever since. In 1977 Junior won their first Colombian championship, finishing first place in the Apertura. They won further championships in 1980, 1993, 1995, the 2004-II (Finalización), the 2010-I (Apertura), the 2011-II (Finalizacion), the 2018-II (Finalización), the 2019-I (Apertura) and the 2023-II (Finalización). They also won
Copa Colombia in 2015 and 2017. Junior have appeared in the
Copa Libertadores eighteen times (reaching the semi-finals in 1994), the
Copa Sudamericana 8 times (reaching the final in 2018), and the
Copa CONMEBOL 1 time. ==Symbols==