The South American Junior Rugby Championship is an annual rugby union competition that features teams from South America. The tournament began in 1972 with Argentina as the host, which saw the locals win the title. It was not until 2008 when the first official Division B tournament was held, which was eventually won by Brazil. In 2014, an addition competition was added, CONSUR Cup, which is contested by Argentina and the top team of the A Division the same year.
In 1999, it changed the minimum age permitted from U18 to U19. Since 2004, the tournament champion (excluding Argentina) qualifies to the next year´s World Rugby Under 20 Trophy organised by the World Rugby. Argentina automatically qualifies for the World Rugby Under 20 Championship.