The South Africa national under-20 rugby union team (nicknamed the Junior Boks or the Baby Boks) are South Africa's junior team at national level. They have been competing in the World Rugby Under 20 Championship (formerly the IRB Junior World Championship) since its inception in 2008. This Under-20 tournament replaced the previously-held Under-19 and Under-21 Rugby World Championships. Prior to 2018, it had been the country's "next senior" (second-level) 15-man national side, but World Rugby no longer allows member unions to designate age-grade sides as "next senior' teams.