The 2018 Women's Under 21 Australian Championships was a field hockey tournament held in the New South Wales city of Sydney between 4–11 July 2018.

[1] New South Wales won the tournament after defeating Queensland 2–1 in the final.

Victoria finished in third place after defeating South Australia 4–2 in the bronze medal match.

At the conclusion of the pool stage, teams progress to the quarterfinals, where the winners progress to contest the medals, while the losing teams playoff for fifth to eighth place.

[2] There were 100 goals scored in 24 matches, for an average of 4.17 goals per match.