Gao Xin (Chinese: 高鑫; pinyin: Gāo Xīn; Mandarin pronunciation: [káʊ ɕín]; born 12 May 1994, in Tianjin) is a Chinese male tennis player. Gao reached a career-high singles ranking of world No.434 on November 7, 2016, and a career-high doubles ranking of world No. 203 on April 2, 2018. He has reached 1 singles final on the ITF circuit. He has reached 45 doubles finals posting a record of 24 wins and 21 losses, including a 3–2 record in ATP Challenger Tour finals.

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Gao Xin

Full name	Gao Xin
Country (sports)	China
Born	(1994-05-12) 12 May 1994 (age 30) Tianjin, China
Height	5 ft 11 in (180cm)
Plays	Right-handed (two-handed backhand)
Prize money	$151,408
Singles
Career record	0–1 (at ATP Tour level, Grand Slam level, and in Davis Cup)
Career titles	0
Highest ranking	No. 434 (7 November 2016)
Current ranking	No. 1694T (25 September 2023)
Doubles
Career record	1–4 (at ATP Tour level, Grand Slam level, and in Davis Cup)
Career titles	0
Highest ranking	No. 203 (2 April 2018)
Current ranking	No. 415 (25 September 2023)
Last updated on: 30 September 2023.

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Gao was a wildcard and lost in the first round of the 2014 ATP Shenzhen Open.^[1]

In 2018, Gao played in his first ATP doubles match, when he received a wildcard entry into the main doubles draw of the 2018 Chengdu Open along with partner Te Rigele. They were defeated in the first round by Matthew Ebden and Mischa Zverev 2–6, 2–6.

The following year at the 2019 Chengdu Open he again received a wildcard entry but would capitalize on the opportunity this time, as he won his first ATP Tour match when he and partner Zhe Li defeated Denis Shapovalov and Jordan Thompson in the first round 7–5, 2–6, [10–1]. They were defeated in the quarterfinals (which was the second round) by Nikola Cacic and Dušan Lajović 6–7^(5-7), 2–6.