Club Atlético Boca Juniors is an Argentine sports club based in the La Boca neighborhood of Buenos Aires. Although many activities are hosted by the club, Boca Juniors is mostly known for its professional football team which, since it was promoted in 1913, has always played in the Argentine Primera División. Boca Juniors is the most successful football team of Argentina, with an overall of more than 60 official titles to date, including its most recent championship, the 2011-12 Copa Argentina. Domestic titles won by Boca Juniors include 30 Primera División championships, and 12 National cups Internationally, the team has won 18 international titles recognized by FIFA, second in the world for number of international titles won, together with A.C. Milan and Real Madrid C.F., holding eighteen titles each, and behind Al Ahly SC with twenty international titles. Other international titles won by Boca Juniors include Rioplatenses competitions Tie Cup, Copa de Honor Cousenier and Copa Escobar-Gerona, organized by Argentine and Uruguayan Associations together. Boca Juniors is also one of only eight teams to have won CONMEBOL's treble (the others being Olimpia, São Paulo, Independiente, Vélez Sársfield, Cruzeiro, Internacional and LDU Quito). Their success usually has Boca ranked among the IFFHS's Club World Ranking Top 25, which they have reached the top position six times (mostly during the coaching tenure of Carlos Bianchi). Boca was also named by the IFFHS as the top South American club of the first decade of the 21st century (2001–2010). Boca is currently ranked 6th. Boca Juniors is also known to be the most popular football club in Argentina, due to its fanbase being composed of approximately 46% of the total population of the country. Boca has always had a fierce rivalry with River Plate, due to both clubs were established in La Boca. Matches between them are known as the Superclásico, and are one of the most heated rivalries in Argentina and the world, as both clubs are the two most popular in the country. Boca's home stadium is Estadio Alberto J. Armando, which is colloquially known as La Bombonera. The youth academy has produced many Argentine internationals such as Oscar Ruggeri, Sebastián Battaglia, Nicolás Burdisso, Carlos Tevez, Éver Banega, and Fernando Gago, who have played or are playing for top European clubs. In addition to football, Boca Juniors also has professional basketball and volleyball teams. Other (amateur) activities held in the club are: athletics, futsal, artistic and rhythmic gymnastics, martial arts (judo, karate and taekwondo), swimming, weightlifting and wrestling.

Boca Juniors basketball section is part of the Boca Juniors sports club based in Buenos Aires, Argentina. The team plays in the Liga Nacional de Básquet (LNB), the first division of the Argentine league system. Boca's home games are played at the Estadio Luis Conde, also called the Bombonerita (in English: "Small Bombonera"), as a reference to the club's football stadium known as the La Bombonera. Boca was one of the most successful teams before the creation of the LNB, winning many titles such as the Torneo Oficial, Torneo Apertura and Torneo Metropolitano organized by defunct leagues Federación Argentina and Asociación de Buenos Aires. Since the establishment of the LNB in 1985, Boca has won three championships (in 1996–97, 2003–04, and 2006–07) and was runner-up another three times (1997–98, 2002–03, and 2004–05). Moreover, Boca won the first five editions of the Copa Argentina de Básquetbol (2002, 2003, 2004, 2005, and 2006) and the Torneo Top 4 in 2004. At the international level, the team has won three times the Campeonato Sudamericano de Clubes (2004, 2005, and 2006).