The Australian national under-19 rugby union team formerly represented Australia on a national level in rugby union at an under-19 year age limit. The team competed in all four editions of the Under 19 Rugby World Championship, winning the title in 2006, and finishing third in 2005 and 2007. Starting in 2008, the International Rugby Board scrapped its under-21 and under-19 world championships in favour of a single under-20 competition, the IRB Junior World Championship. Australia accordingly replaced its under-21 and under-19 sides with a new under-20 side.