The 2021 AFL Women's season was the fifth season of the AFL Women's competition, the highest level senior Australian rules football competition in Australia. The season featured fourteen clubs, ran from 28 January until 17 April, and comprised a 9-game home-and-away season followed by a finals series featuring the top six clubs. The premiership was won by the Brisbane for the first time, after it defeated Adelaide by 18 points in the AFL Women's Grand Final.