The 2015 ANZ Championship season was the eighth season of the ANZ Championship. The season began on 28 February and concluded on 21 June. The 2015 season saw the introduction of several major format changes and initiatives, including a Conference system, a six-team Finals Series, drawn games and a new Ranfurly Shield-style competition, the Challenge Trophy. With a team coached by Roselee Jencke, captained by Laura Geitz and featuring Romelda Aiken, Clare McMeniman and Kim Ravaillion, Queensland Firebirds won the Australian Conference, the Challenge Trophy, the minor premiership and the overall championship. Firebirds narrowly defeated New South Wales Swifts in both the Australian Conference final and the Grand Final on their way to effectively winning four titles.

The ANZ Championship, also known as the Trans-Tasman Netball League, is a former netball league featuring teams from both Australia and New Zealand. Between 2008 and 2016, it was the top-level league in both countries. The competition was owned and administered by Trans-Tasman Netball League Ltd (TTNL), a joint venture between Netball Australia and Netball New Zealand. It was effectively a merger of Australia's Commonwealth Bank Trophy and New Zealand's National Bank Cup. Its main sponsor was the Australia and New Zealand Banking Group.