Jiang Xinyu
| Jiang at the 2019 French Open | ||||||||||||||||||
| Country (sports) | China | |||||||||||||||||
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| Born | 3 March 1999 Ziyang, China | |||||||||||||||||
| Height | 1.60 m (5 ft 3 in) | |||||||||||||||||
| Plays | Right-handed | |||||||||||||||||
| Prize money | $394,764 | |||||||||||||||||
| Singles | ||||||||||||||||||
| Career record | 85–71 | |||||||||||||||||
| Career titles | 0 | |||||||||||||||||
| Highest ranking | No. 511 (16 October 2023) | |||||||||||||||||
| Doubles | ||||||||||||||||||
| Career record | 192–104 | |||||||||||||||||
| Career titles | 5 | |||||||||||||||||
| Highest ranking | No. 29 (31 March 2025) | |||||||||||||||||
| Current ranking | No. 29 (31 March 2025) | |||||||||||||||||
| Grand Slam doubles results | ||||||||||||||||||
| Australian Open | 3R (2024) | |||||||||||||||||
| French Open | 2R (2025) | |||||||||||||||||
| Wimbledon | 1R (2024) | |||||||||||||||||
| US Open | 2R (2024) | |||||||||||||||||
| Grand Slam mixed doubles results | ||||||||||||||||||
| French Open | 2R (2025) | |||||||||||||||||
| Team competitions | ||||||||||||||||||
| Fed Cup | 6–1 | |||||||||||||||||
| Medal record 
 | ||||||||||||||||||
| Last updated on: 31 March 2025. | ||||||||||||||||||
Jiang Xinyu (Chinese: 蒋欣玗; pinyin: Jiǎng Xīnyú; Mandarin pronunciation: [tɕjàŋ ɕín y̌]; born 3 March 1999) is a Chinese professional tennis player who specializes in doubles. On 31 March 2025, she achieved a career-high doubles WTA ranking of world No. 29. Jiang has won five doubles titles on the WTA Tour and 18 doubles titles on the ITF Women's Circuit. On 16 October 2023, she peaked at No. 511 in the singles rankings.
Playing for China Billie Jean King Cup team, she has a win-loss record of 6–1.