Hsu Wen-hsin (Chinese: 許文馨; born 13 April 1988) is a Taiwanese former tennis player.

Hsu won two singles titles and six doubles titles on the ITF Women's Circuit. On 15 May 2006, she reached her best singles ranking of world No. 221. On 7 May 2012, she peaked at No. 180 in the WTA doubles rankings.

Hsu won her first $50k title at the 2011 Kōfu International Open, partnering with Chan Chin-wei to defeat Remi Tezuka and Akiko Yonemura in the final.^[1]

Playing for Taiwan in the Fed Cup, Hsu reached a win–loss record of 5–1.

Result	No.	Date	Tournament	Surface	Opponent	Score
Loss	1.	22 November 2003	ITF Tainan, Taiwan	Clay	Chan Chin-wei	7–5, 4–6, 4–6
Loss	2.	30 October 2004	ITF Taipei, Taiwan	Hard	Chan Yung-jan	5–7, 3–6
Loss	3.	22 May 2005	ITF Ho Chi Minh City, Vietnam	Hard	Wynne Prakusya	4–6, 1–6
Loss	4.	21 August 2005	ITF Nanjing, China	Hard	Miho Saeki	2–6, 2–6
Win	1.	2 October 2005	ITF Balikpapan, Indonesia	Hard	Hwang I-hsuan	6–3, 7–64
Loss	5.	20 September 2008	ITF Kyoto, Japan	Carpet (i)	Ayaka Maekawa	5–7, 4–6
Loss	6.	31 May 2009	ITF Gunma, Japan	Carpet	Junri Namigata	1–6, 1–6
Win	2.	29 August 2010	ITF Saitama, Japan	Hard	Duan Yingying	1–6, 6–1, 3–6

Result	No.	Date	Tournament	Surface	Partner	Opponents	Score
Loss	1.	2 October 2005	ITF Balikpapan, Indonesia	Clay	Hwang I-hsuan	Chen Yi Kao Shao-yuan	3–6, 5–7
Loss	2.	13 November 2005	ITF Shenzhen, China	Hard	Chan Chin-wei	Hsieh Su-wei Yan Zi	0–6, 2–6
Loss	3.	15 January 2006	ITF Tampa, United States	Hard	Chan Chin-wei	Chanelle Scheepers Aleke Tsoubanos	6–3, 6–74, 3–6
Win	1.	31 August 2008	ITF Saitama, Japan	Hard	Hwang I-hsuan	Airi Hagimoto Miyabi Inoue	6–4, 6–3
Loss	4.	26 October 2008	Taipei Open, Taiwan	Carpet (i)	Hwang I-hsuan	Chuang Chia-jung Hsieh Su-wei	3–6, 3–6
Win	2.	31 May 2009	ITF Gunma, Japan	Carpet	Mari Tanaka	Erika Sema Yurika Sema	6–3, 1–6, [10–7]
Loss	5.	6 September 2009	ITF Tsukuba, Japan	Hard	Mari Tanaka	María Fernanda Álvarez Terán Jade Curtis	6–1, 2–6, [2–10]
Win	3.	13 September 2009	ITF Noto, Japan	Carpet	Hwang I-hsuan	Han Xinyun Kim So-jung	6–3, 1–6, [11–9]
Loss	6.	20 March 2011	ITF Sanya, China	Hard	Rika Fujiwara	Iryna Brémond Ani Mijačika	6–3, 5–7, [10–12]
Win	4.	4 September 2011	ITF Tsukuba, Japan	Hard	Chan Chin-wei	Kim So-jung Erika Takao	6–1, 6–1
Win	5.	8 October 2011	Kōfu International Open, Japan	Hard	Chan Chin-wei	Remi Tezuka Akiko Yonemura	6–3, 6–4
Loss	7.	6 May 2012	Kangaroo Cup, Japan	Hard	Chan Chin-wei	Jessica Pegula Zheng Saisai	4–6, 6–3, [4–10]
Loss	8.	9 June 2013	ITF Taipei, Taiwan	Hard	Chan Chin-wei	Kao Shao-yuan Lee Hua-chen	6–4, 3–6, [7–10]
Win	6.	1 September 2013	ITF Tsukuba, Japan	Hard	Chan Chin-wei	Lee Ya-hsuan Yumi Miyazaki	6–2, 6–1

• Hsu Wen-hsin at the Women's Tennis Association
• Hsu Wen-hsin at the International Tennis Federation
• Hsu Wen-hsin at the Billie Jean King Cup (archived)