2023 Australian Open – Boys' singles

Boys' singles
2023 Australian Open
Champion Alexander Blockx
Runner-up Learner Tien
Score6–1, 2–6, 7–6(11–9)

Alexander Blockx won the boys' singles title at the 2023 Australian Open, defeating Learner Tien in the final, 6–1, 2–6, 7–6(11–9).

Bruno Kuzuhara was the defending champion, but was no longer eligible to participate in junior events. He received a wildcard into the men's singles qualifying competition, where he lost to Michael Mmoh in the first round.