Women's South Island League (New Zealand)

The Women's South Island League is an amateur status league competition run by Southern Football and Mainland Football for Association football clubs located in the South Island of New Zealand. It is at the second level of New Zealand Football behind the national association based New Zealand Women's National League, and the highest level of club based football available to teams within the region.

In March 2023, New Zealand Football announced a change to the Women's National League to move to a fully club-based model, the same as the three regional leagues of the men's competition, when club capability allows. Targeted for 2026, South Island clubs will be competing in the Women's National League. To support this, Mainland and Southern federations will jointly deliver a South Island league, and it will act as a pilot for future incorporation into the league, as the Southern League does for the men's competition.

Current clubs
As of 2024 season

Promotion/Relegation
As of 2024 season

Top scorers
The following list is from the 2022 season onwards after New Zealand Football changed the football league system in New Zealand. From 2026 onwards, the Women's South Island League will acted as a qualifier league to the Women's National League.

Records
The following records are from the 2022 season onwards after New Zealand Football changed the football league system in New Zealand. From 2026 onwards, the Women's South Island League will acted as a qualifier league to the Women's National League. Any records form 2022 season are noted. The records are up to date as of the end of the 2023 season.
 * Most wins in a season: 9 – Cashmere Technical (2023)
 * Fewest defeats in a season: 0 – Cashmere Technical (2023)
 * Most goals scored in a season: 36 – Cashmere Technical (2023)
 * Fewest goals conceded in a season: 9 – Cashmere Technical (2023)
 * Most points in a season: 28 – Cashmere Technical (2023)
 * Fewest points in a season: 0 – Nelson Suburbs and University of Canterbury (2023)
 * Highest goal difference: +27 – Cashmere Technical (2023)
 * Biggest home win:
 * Cashmere Technical 9–1 Roslyn-Wakari (31 July 2022)
 * Coastal Spirit 8–0 Nelson Suburbs (19 August 2023)
 * Biggest away win: – Otago University 0–10 Coastal Spirit (23 July 2023)
 * Highest scoring match: 10 goals
 * Cashmere Technical 9–1 Roslyn-Wakari (31 July 2022)
 * Otago University 0–10 Coastal Spirit (23 July 2023)

Past Champions

 * 2022 – Coastal Spirit
 * 2023 – Cashmere Technical