Hsu Yu-hsiou (Chinese: 許育修; born 2 April 1999) is a Taiwanese tennis player.

In 2017, he won the 2017 Australian Open boys' doubles championships title alongside Zhao Lingxi.

In the same year, he made his debut for the Chinese Taipei Davis Cup team, where he won his single's tie against Shahin Khaledan of Iran by a score of 4–6, 6–1, [10–8].

Hsu made his Grand Slam debut by qualifying for the 2023 Australian Open, beating Evan Furness, Elias Ymer and Alexandre Muller.

He qualified for the main draw and recorded his first Masters 1000 wins defeating Max Purcell and 17th seed Lorenzo Musetti.