Julia Stusek (born 30 June 2008) is a German tennis player. She has a career-high WTA singles ranking of world No. 550, achieved on 23 February 2026. She is the daughter of former professional tennis player Petra Holubová and her father Tomas runs a tennis school.
Due to her Czech parents, she speaks fluent Czech.
Stusek is occasionally coached by Melanie Molitor, the mother of former World No. 1 Martina Hingis.
She made her WTA Tour main draw debut as a lucky loser at the 2024 Bad Homburg Open, where she lost in the first round to Peyton Stearns.