 The New Zealand national rugby union team , commonly called the All Blacks , represent New Zealand in men 's rugby union , which is regarded as the country 's national sport . The side has won the last two Rugby World Cups , in 2011 and 2015 , as well as the inaugural tournament in 1987 . They have a 76 % winning record in test match rugby , and are the only international side with a winning record against every opponent ; and since their international debut in 1903 five nations have defeated New Zealand in test matches . Since the introduction of the World Rugby Rankings in 2003 , New Zealand has held the number one ranking longer than all other teams combined . The All Blacks statistically speaking are the best side to have played the game . 
