2021 in New Zealand football

The 2021 season was the 131st competitive association football season in New Zealand.

Northern League

 * Melville won 1–0, but West Coast fielded an ineligible player. Result upgraded to a 3–0 win for Melville.
 * North Shore won 2–0, but West Coast fielded an ineligible player. Result upgraded to a 3–0 win for North Shore.
 * League completed early with games still in hand due to Covid-19 and Auckland being in Level 4.

NRFL Women's Premier League

 * League completed early with two rounds remaining due to Covid-19 and Auckland being in Level 4.
 * There was no relegation with the league expanding to eight teams instead for 2022.

New clubs

 * Northern Rovers
 * South City Royals
 * West Coast Rangers

Clubs removed

 * Hawke's Bay United
 * Team Wellington
 * Waitakere United