Jason Jung

Jason Jung
Country (sports)
  • United States (2003–2015)
  • Taiwan (2015–present)
ResidenceTorrance, California, U.S.
Born (1989-06-15) 15 June 1989
Torrance, California, U.S.
Height1.80 m (5 ft 11 in)
Turned pro2011
PlaysRight-handed (two-handed backhand)
CollegeMichigan
CoachOliver Messerli
Prize money$ 1,168,101
Singles
Career record12–25
Career titles0
Highest rankingNo. 114 (30 July 2018)
Current rankingNo. 1,038 (10 November 2025)
Grand Slam singles results
Australian OpenQ2 (2019, 2020)
French Open1R (2020)
Wimbledon1R (2018)
US Open1R (2020)
Doubles
Career record1–2
Career titles0
Highest rankingNo. 185 (26 September 2016)
Current rankingNo. 371 (3 November 2025)
Medal record
Men's tennis
Representing  Chinese Taipei
Asian Games
2022 Hangzhou Doubles
Summer Universiade
2017 Taipei Singles
2017 Taipei Team
Last updated on: 13 November 2025.

Jason Jung (Chinese: 莊吉生; pinyin: Zhuāng Jíshēng; Pe̍h-ōe-jī: Chng Kit-seng; Taiwanese Mandarin: [tswáŋ tɕǐ sə́ŋ]; born 15 June 1989) is an American-Taiwanese professional tennis player representing team Chinese Taipei. He has a career high ATP singles ranking of world No. 114 achieved on 30 July 2018 and has won four ATP Challenger titles. Jung has attended the University of Michigan.