AFL Women's Under-18 Championships

Originally known as the AFL Youth Girls National Championship, the competition has teams of players representing their states and territories in a round robin tournament.

A 2008 series between the Queensland and Victoria teams was the predecessor to a national state-based competition for young female footballers.

Teams played three regular games against the sides from the opposite pool before a finals series.

[2] A combined Northern Territory–Tasmania team known as the Thunder Devils and an Indigenous Australian side called the Woomeras entered the tournament in 2014.

[8][9] There was no championships staged in 2020 due to the impact of the COVID-19 pandemic, which caused the 2021 tournament to have an increased age eligibility by one year (under-19).