The 1998 New Zealand rugby league season was the 91st season of rugby league that had been played in New Zealand. The main feature of the year was the National Provincial competition that was run by the New Zealand Rugby League. Auckland won the National Provincial Competition by defeating Canterbury 44-8 while Waikato ended the season holding the Rugby League Cup.
The New Zealand Kiwis played in six Test matches in 1998, defeating Australia 22-16 at North Harbour Stadium in the ANZAC Test on 24 April before losing 12-30 and 16-36 in October. New Zealand were coached by Frank Endacott and included; captain Matthew Ridge, Sean Hoppe, Richard Blackmore, , Richie Barnett, Robbie Paul, Stacey Jones, John Lomax, Henry Paul, Quentin Pongia, Jarrod McCracken, Tony Iro, Logan Swann, Nigel Vagana, Terry Hermansson, Kevin Iro, Syd Eru, Stephen Kearney, Gene Ngamu, Tony Puletua, Nathan Cayless and Joe Vagana.