2021 AFL Women's Under-19 Championships

The 2021 NAB AFL Women's Under-19 Championships is the eleventh national under-18/19 girls Australian rules football competition. The tournament, which was previously held in 2019 and not in 2020 due to the COVID-19 pandemic, was played in April and May and featured eight teams. Due to the pandemic, no winner was declared; instead, a series of challenge matches were played.