BJJ Academies in Buenos Aires.

Buenos Aires province is Argentina's BJJ heartland — covering both CABA (the autonomous city of Buenos Aires) and the broader province belt that extends to La Plata, Mar del Plata, Tigre, and the Greater Buenos Aires conurbation.

CABA hosts the country's competition governance. AAJJB (Asociación Argentina de Jiu-Jitsu Brasileño) at Av. Córdoba 4156 in CABA runs IBJJF-ruleset events including the Campeonato Buenos Aires de Jiu-Jitsu and the Campeonato MERCOSUR. CAJJ (Confederación Argentina de Jiu-Jitsu) operates as the IBJJF-aligned national governing body. The international layer comes through the AJP Tour Buenos Aires International Jiu-Jitsu Championship at Parque Olímpico de la Juventud, alongside the AJP Tour Argentina National Championship.

Notable academies span the province. Alliance Jiu-Jitsu Argentina (Buenos Aires) operates under the Fabio Gurgel affiliation. Sukata Argentina has run for 15+ years across both gi and no-gi. Six Blades Jiu Jitsu Buenos Aires runs out of Tigre in the province's northern conurbation. Team 360 runs in Belgrano (CABA). In Mar del Plata — the province's Atlantic-coast city — Club Banco Provincia runs gi BJJ, with additional rooms under Constrictors-affiliated coaches Claudio Palumbo and Federico Cociña.