The Australian national rugby league team, the Kangaroos, have represented Australia in senior men's rugby league football competitions since the establishment of the game in Australia in 1908. Administered by the Australian Rugby League Commission, the Kangaroos are ranked first in the IRL Men's World Rankings. The team is the most successful in Rugby League World Cup history, having won the competition 12 times, and contested 15 of the 16 finals, only failing to reach the final in the 1954 inaugural tournament. Only five nations have beaten Australia in test matches, and Australia has an overall win percentage of 69%.

Rugby league football, commonly known as rugby league in English-speaking countries and rugby XIII in non-Anglophone Europe and South America, and referred to colloquially as rugby, football, footy or league in its heartlands, is a full-contact sport played by two teams of thirteen players on a rectangular field measuring 68 m (74 yd) wide and 112–122 m (122–133 yd) long with H-shaped posts at both ends. It is one of the two major codes of rugby football, the other being rugby union. It originated in 1895 in Huddersfield, Yorkshire, England, as the result of a split from the Rugby Football Union (RFU) over the issue of payments to players. The rules of the game governed by the new Northern Rugby Football Union progressively changed from those of the RFU with the specific aim of producing a faster and more entertaining game to appeal to spectators, on whose income the new organisation and its members depended.