Wellington Phoenix Football Club is a professional football club based in Wellington, New Zealand. It competes in the Australian A-League, under licence from Football Federation Australia. Phoenix entered the competition in the 2007–08 season after its formation in March 2007, by New Zealand Football to replace New Zealand Knights as a New Zealand-based club in the Australian A-League competition. Since 2011, the club has been owned by Welnix, a consortium of seven Wellington businessmen.

A-League Men is the highest-level professional men's soccer league in Australia and New Zealand. At the top of the Australian league system, it is the country's premier men's competition for the sport. A-League Men was established in 2004 as the A-League by the Football Federation Australia (FFA) as a successor to the National Soccer League (NSL) and competition commenced in August 2005. The league is currently administered by the Australian Professional Leagues (APL), contested by twelve teams; eleven based in Australia and one based in New Zealand. The men's, women's and youth leagues have now been brought together under a unified A-Leagues banner.