1948 New Zealand rugby league season

Wellington again held the Northern Union Cup at the end of the season. They accepted challenges from Wanganui and Taranaki but did not put the trophy on the line against Auckland.[3]

The South Island defeated the North Island 21–18 in the annual fixture.[4] The South Island included Jack Forrest, Pat Smith, Bob Aynsley, John Newton, Charlie McBride, Ken Mountford and Bob Neilson.

Auckland sent a team to Wellington and the South Island in July, and at the same time hosted South Auckland. Auckland opened their tour with a 14–5 defeat of Wellington before defeating Canterbury 32–22 at Athletic Park. They then played the West Coast at Wingham Park, losing 18–2. The Auckland touring squad was coached by Stan Prentice, managed by Bill Telford and included Ray Cranch, Clarence Hurndell, Rex Cunningham, Roy Roff, Morrie Rich, Arthur McInnarney, Jack Russell-Green, Len Jordan and Doug Anderson.

While one team was on tour Auckland hosted, and defeated, South Auckland 60–9 at Carlaw Park.[3] This Auckland side included Roy Nurse, Warwick Clarke, Des Barchard, Vic Belsham, Dave Redmond, Joffre Johnson, Travers Hardwick, George Davidson and Maurie Robertson.

The West Coast included Ken Mountford and Charlie McBride.

Marist won the Auckland Rugby League's Fox Memorial Trophy.[5] Marist and Richmond shared the Rukutai Shield. Mount Albert won the Roope Rooster and Stormont Shield while Newtown won the Sharman Cup.

Marist then hosted Runanga at Carlaw Park, winning 23–10 in a champion of champions match.

The City Rovers and Newton Rangers clubs amalgamated to form City Newton.[6] The Northcote Tigers qualified for the first grade for the first time.

Marist included Des Barchard, Jimmy Edwards and George Davidson. Richmond included Graham Burgoyne, Dave Redmond and Maurie Robertson.[3]

Marist won the Wellington Rugby League's Appleton Shield.[5]

Christchurch won the Canterbury Rugby League's Massetti Cup.[5]

On 24 July Rakaia were led off during the match by their captain after a dispute with the referee who had sent a player off. It would be the last game of rugby league the club played as they were suspended by the Rugby League and did not return to the competition.[4]

Runanga won the West Coast Rugby League competition before defeating Christchurch 29–10 to win the Thacker Shield.[4] Runanga included John Newton.[3]