Auckland FC have claimed a historic A-League Men championship title with a 1-0 grand final win over Sydney FC.

New Zealand international and club inaugural signing Cam Howieson was the hero at a sold-out Go Media Stadium, firing the match-winner in the 60th minute.

Auckland became the first New Zealand team to win an ALM grand final, doing so in front of a raucous 28,374-strong crowd on home soil on Saturday.

A Sydney FC great, Auckland coach Steve Corica claimed his third championship after leading the Sky Blues to back-to-back titles in 2019 and 2020.

Corica is the first coach in the ALM era to win three grand finals, with Ange Postecoglou winning two National Soccer League championships and two in the modern league.

Last year's premiers Auckland are the third club in league history to win a grand final from outside the top two, having finished the regular season in third.

AAP travelled to Auckland as a guest of Australian Professional Leagues.