Hsu Jo-hsi (; born 1 November 2000) is a Taiwanese professional baseball pitcher for the Fukuoka SoftBank Hawks of Nippon Professional Baseball (NPB). He previously played in the Chinese Professional Baseball League (CPBL) for the Wei Chuan Dragons.
On July 1, 2019, Hsu was selected by the Wei Chuan Dragons as the 6th overall pick in the 2019 CPBL draft.
On February 28, 2020, Hsu pitched in a warm-up game against the CTBC Brothers, where he gave up 5 runs across 2 innings. After feeling discomfort in his right hand, Hsu was examined and underwent bone spur surgery, which ruled him out for 6 months.
On March 17, 2021, Hsu started his first professional game against the Brothers, where he pitched scoreless innings, striking out 11 batters and allowing 3 hits. Hsu became the first pitcher in CPBL history to strikeout 11 of his first batters faced. On March 28, Hsu recorded 10 strikeouts across innings in a 5âÂÂ2 defeat against the Fubon Guardians. On August 8, Hsu ended an 8-game winless streak in a 5âÂÂ1 win against the Guardians, striking out 12 across 5 innings, including 8 consecutive batters.
Hsu missed the start of the 2022 season due to a torn ligament in his elbow. While the original examination concluded that Hsu did not require surgery, due to slow recovery, he decided to undergo Tommy John surgery in July, ruling him out for the season.
On August 27, 2023, Hsu made his first appearance since 2021, pitching scoreless innings against the Guardians. On November 4, Hsu started Game 1 of the 2023 Taiwan Series against the Rakuten Monkeys, pitching 4 innings, allowing 4 hits and a run while striking out 4. On the 11th, in Game 6, Hsu struck out 7 hitters across 7 scoreless innings in the Dragons' 2âÂÂ0 win, forcing Game 7. Hsu was awarded the 2023 Taiwan Series MVP for his performances.
On December 22, 2025, Hsu signed with the Fukuoka SoftBank Hawks of Nippon Professional Baseball.
Hsu was selected to play for Chinese Taipei at the 2023 Asian Baseball Championship, where he struck out 10 hitters across 7 innings against South Korea in the opening game on December 4.