Hsu Chieh-yu (Chinese: 許絜瑜; pinyin: Xǔ Jié-yú; also known as Connie Hsu;^[1] born 14 January 1992) is a Taiwanese-American tennis player.

Hsu has won six singles and twenty-seven doubles titles on the ITF Women's Circuit. On 21 April 2014, she reached her best singles ranking of world No. 224. On 23 February 2015, she peaked at No. 114 in the WTA doubles rankings. She represented Chinese Taipei to compete in the Tokyo 2020 Summer Olympics (women’s doubles).

Hsu, born in Taiwan, moved to the United States in 2001 and represented the U.S. in her junior and college tennis career. In 2007, she debuted on the WTA Tour at the Cincinnati Open. In 2010, she studied at the University of Pennsylvania, before turning professional in the summer of 2011.^[1][2] However, at the Melbourne Pro Classic in April 2014, she started competing under the flag of Chinese Taipei.^[3]

Result	W–L	Date	Tournament	Tier	Surface	Opponent	Score
Win	1–0	Dec 2009	ITF Veracruz, Mexico	10,000	Hard	Vivian Segnini	7–5, 6–4
Win	2–0	Jun 2011	ITF Taipei, Taiwan	10,000	Hard	Chan Chin-wei	6–1, 6–4
Win	3–0	Sep 2011	ITF Antalya, Turkey	10,000	Hard	Christina Shakovets	6–4, 6–0
Win	4–0	Sep 2011	ITF Adana, Turkey	10,000	Hard	Nikola Fraňková	6–0, 7–5
Loss	4–1	Nov 2016	ITF Hua Hin, Thailand	10,000	Hard	Andrea Ka	6–4, 0–6, 6–7(0)
Win	5–1	Feb 2017	ITF Hammamet, Tunisia	15,000	Clay	Sandra Samir	6–2, 2–6, 6–1
Loss	5–2	Jul 2017	ITF Hua Hin, Thailand	15,000	Hard	Michaela Haet	2–6, 7–6(5), 5–7
Win	6–2	Jun 2019	ITF Shreveport, United States	15,000	Clay	Alycia Parks	6–2, 6–3

Result	No.	Date	Tournament	Tier	Surface	Partner	Opponents	Score
Loss	0–1	Dec 2009	ITF Veracruz, Mexico	10,000	Hard	Nika Kukharchuk	Dominika Diešková Mashona Washington	5–7, 4–6
Loss	0–2	Jul 2010	ITF Waterloo, Canada	25,000	Clay	Lauren Albanese	Elisabeth Abanda Katarena Paliivets	w/o
Win	1–2	May 2011	ITF Landisville, U.S.	10,000	Hard	Nicola Slater	Brooke Rischbieth Storm Sanders	7–5, 6–3
Win	2–2	Sep 2011	ITF Antalya, Turkey	10,000	Hard	Lucia Butkovská	Khristina Kazimova Sasha Khabibulina	6–2, 6–2
Win	3–2	Sep 2011	ITF Adana, Turkey	10,000	Hard	Nikola Fraňková	Hülya Esen Lütfiye Esen	7–6(4), 6–4
Win	4–2	May 2012	ITF Landisville, U.S.	10,000	Hard	Macall Harkins	Gabriela Dabrowski Alexandra Mueller	6–3, 6–4
Loss	4–3	Sep 2012	ITF Redding, U.S.	25,000	Hard	Macall Harkins	Jacqueline Cako Sanaz Marand	6–7(5), 5–7
Loss	4–4	Oct 2012	ITF Rock Hill, U.S.	25,000	Hard	Chiara Scholl	Jacqueline Cako Natalie Pluskota	2–6, 3–6
Win	5–4	Jan 2013	ITF Innisbrook, U.S.	25,000	Clay	Ulrikke Eikeri	Florencia Molinero Adriana Pérez	6–3, 6–0
Loss	5–5	Sep 2013	ITF Victoria, Mexico	15,000	Hard	Ana Sofía Sánchez	María Fernanda Álvarez Terán María Irigoyen	6–7(2), 3–6
Win	6–5	Dec 2013	ITF Mérida, Mexico	25,000	Hard	María Irigoyen	Hilda Melander Rebecca Peterson	6–4, 5–7, [10–6]
Loss	6–6	Dec 2013	ITF Mérida, Mexico	25,000	Hard	Dia Evtimova	Barbara Bonić Hilda Melander	3–6, 5–7
Win	7–6	May 2014	ITF Raleigh, U.S.	25,000	Clay	Alexandra Mueller	Danielle Lao Keri Wong	6–3, 6–3
Loss	7–7	Jun 2014	ITF El Paso, U.S.	25,000	Hard	Danielle Lao	Jamie Loeb Ashley Weinhold	6–4, 4–6, [13–15]
Loss	7–8	Jun 2014	Open de Montpellier, France	25,000	Clay	Elitsa Kostova	Inés Ferrer Suárez Sara Sorribes Tormo	6–2, 3–6, [10–12]
Loss	7–9	Dec 2014	ITF Mérida, Mexico	25,000	Hard	Jan Abaza	Tatjana Maria Renata Zarazúa	6–7(1), 1–6
Win	8–9	Jan 2015	ITF Hong Kong	50,000	Hard	Han Xinyun	Varatchaya Wongteanchai Varunya Wongteanchai	3–6, 6–4, [10–8]
Loss	8–10	Sep 2015	ITF Monterrey, Mexico	25,000	Hard	Alexa Guarachi	Tadeja Majerič Conny Perrin	5–7, 3–6
Loss	8–11	Oct 2015	ITF Sharm El Sheikh, Egypt	10,000	Hard	Anna Morgina	Emily Arbuthnott Lisa Whybourn	2–6, 4–6
Win	9–11	Nov 2015	ITF Sharm El Sheikh, Egypt	10,000	Hard	Martina Přádová	Vicky Geurinckx Melissa Ifidzhen	6–2, 6–4
Loss	9–12	Dec 2015	Pune Championships, India	25,000	Hard	Prarthana Thombare	Valentyna Ivakhnenko Anastasiya Vasylyeva	6–4, 2–6, [10–12]
Win	10–12	Aug 2016	ITF Fort Worth, U.S.	25,000	Hard	Chanel Simmonds	Jacqueline Cako Danielle Lao	6–0, 6–4
Loss	10–13	Oct 2016	ITF Hamamatsu, Japan	25,000	Carpet	Justyna Jegiołka	Jana Fett Ayaka Okuno	6–4, 6–7(5), [10–12]
Loss	10–14	Feb 2017	ITF Hammamet, Tunisia	15,000	Clay	Yana Sizikova	Giorgia Marchetti Angelica Moratelli	4–6, 3–6
Loss	10–15	Feb 2017	ITF Hammamet, Tunisia	15,000	Clay	Victoria Muntean	Giorgia Marchetti Angelica Moratelli	6–2, 3–6, [8–10]
Win	11–15	Feb 2017	ITF Hammamet, Tunisia	15,000	Clay	Sandra Samir	Ida Jarlskog Julia Rosenqvist	6–2, 7–5
Win	12–15	Mar 2017	ITF Tampa, U.S.	15,000	Clay	Alexa Guarachi	Emina Bektas Sanaz Marand	6–3, 4–6, [10–4]
Loss	12–16	Aug 2017	ITF Tsukuba, Japan	25,000	Hard	Naiktha Bains	Miharu Imanishi Akiko Omae	4–6, 4–6
Win	13–16	Sep 2017	ITF Nanao, Japan	25,000	Carpet	Miharu Imanishi	Akari Inoue Miyabi Inoue	7–6(7), 6–2
Win	14–16	Jan 2018	ITF Hammamet, Tunisia	15,000	Clay	Victoria Muntean	Maria Marfutina Ioana Loredana Roșca	3–6, 7–5, [10–5]
Loss	14–17	Feb 2018	ITF Hammamet, Tunisia	15,000	Clay	Sandra Samir	Melania Delai Angelica Moratelli	2–6, 4–6
Win	15–17	Feb 2018	ITF Curitiba, Brazil	25,000	Clay	Marcela Zacarías	Audrey Albié Harmony Tan	6–0, 6–3
Loss	15–18	Mar 2018	ITF São Paulo, Brazil	25,000	Clay	Marcela Zacarías	Tara Moore Conny Perrin	4–6, 6–3, [11–13]
Loss	15–19	Jul 2018	Challenger de Gatineau, Canada	25,000	Hard	Marcela Zacarías	Bianca Andreescu Carson Branstine	6–4, 2–6, [4–10]
Win	16–19	Aug 2018	ITF Fort Worth, U.S.	25,000	Hard	Marcela Zacarías	Ayaka Okuno Olivia Tjandramulia	3–6, 7–6(6), [10–6]
Loss	16–20	Oct 2018	ITF Charleston, U.S.	25,000	Clay	Gabriela Talabă	Sophie Chang Alexandra Mueller	4–6, 4–6
Win	17–20	May 2019	ITF Changwon, Korea	W25	Hard	Chanel Simmonds	Choi Ji-hee Lee Ya-hsuan	6–3, 6–4
Win	18–20	May 2019	ITF Goyang, Korea	W25	Hard	Chanel Simmonds	Kim Na-ri Lee So-ra	6–1, 6–3
Win	19–20	Jun 2019	ITF Shreveport, U.S.	W15	Clay	Vladica Babić	Jennifer Elie Alexandra Osborne	6–2, 6–0
Win	20–20	Jul 2019	ITF Saskatoon, Canada	W25	Hard	Marcela Zacarías	Haruka Kaji Momoko Kobori	6–3, 6–2
Loss	20–21	Jul 2019	Challenger de Gatineau, Canada	W25	Hard	Marcela Zacarías	Leylah Fernandez Rebecca Marino	6–7(5), 3–6
Win	21–21	Jul 2019	ITF Evansville, U.S.	W25	Hard	Chanel Simmonds	Haruna Arakawa Pamela Montez	6–2, 6–0
Win	22–21	Aug 2019	ITF Fort Worth, U.S.	W25	Hard	Gabriela Talabă	Elysia Bolton Jada Hart	7–6(8), 7–5
Win	23–21	Aug 2019	ITF Guayaquil, Ecuador	W25	Clay	Marcela Zacarías	Emiliana Arango Katerina Stewart	6–4, 6–2
Loss	23–22	Nov 2019	Tyler Pro Challenge, U.S.	W80	Hard	Marcela Zacarías	Jessy Rompies Beatrice Gumulya	2–6, 3–6
Win	24–22	Jan 2020	ITF Vero Beach, U.S.	W25	Clay	Panna Udvardy	Irene Burillo Escorihuela Andrea Lázaro García	7–5, 4–6, [10–7]
Loss	24–23	Nov 2021	ITF Naples, U.S.	W25	Clay	Jessy Rompies	Hanna Chang Elizabeth Mandlik	4–6, 6–1, [7–10]
Loss	24–24	Apr 2022	ITF Orlando, U.S.	W25	Clay	Hsieh Yu-chieh	Catherine Harrison Maegan Manasse	1–6, 0–6
Win	25–24	May 2022	ITF Daytona Beach, U.S.	W25	Clay	Hsieh Yu-chieh	Chelsea Fontenel Hina Inoue	7–5, 6–0
Loss	25–25	May 2022	ITF Sarasota, U.S.	W25	Clay	Hsieh Yu-chieh	Ma Yexin Akvilė Paražinskaitė	2–6, 5–7
Loss	25–26	Sep 2022	ITF Lubbock, U.S.	W15	Hard	Maria Kononova	Katarina Kozarov Veronika Miroshnichenko	1–6, 6–4, [9–11]
Win	26–26	Sep 2023	ITF Hilton Head, U.S.	W15	Clay	Mia Yamakita	Lucciana Pérez Alarcón Wakana Sonobe	6–2, 7–5
Win	27–26	Oct 2023	ITF Jackson, U.S.	W15	Hard	Anita Sahdiieva	Adeline Flach Angella Okutoyi	7–5, 6–3
Loss	27–27	Jan 2024	ITF Naples, U.S.	W35	Clay	Mayuka Aikawa	Marie Benoît Leonie Küng	7–6(2), 2–6, [8–10]

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