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.

South American Junior Rugby Championship

Sport	Rugby union
Founded	1972
No. of teams	9
Continent	South America
Most recent champion(s)	Argentina

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 U20 Trophy organised by the World Rugby. Argentina automatically qualifies for the World Rugby Under 20 Championship.