| ITF W25 Huangshan | 08/13 06:15 | 25 | [470] Qianqian Zhao v Ya-Hsuan Lee [421] | 3-6,2-6 | |
| ITF W25 Taipei | 07/30 04:30 | 25 | Ya-Hsuan Lee v Sohyun Park | 2-6,6-3,3-6 | |
| 2019 Fed Cup | 06/13 06:05 | - | Ya-Hsuan Lee v Anastasiya Tursunova | 6-0,6-2 | |
| ITF W25 Incheon | 05/30 02:00 | 26 | [385] Daria Mishina v Ya-Hsuan Lee [277] | 6-3,7-6 | |
| ITF W25 Incheon | 05/29 02:20 | 25 | Yu Jin Ahn v Ya-Hsuan Lee | 5-7,1-6 | |
| ITF W25 Goyang | 05/23 05:40 | 26 | Jacqueline Cabaj Awad v Ya-Hsuan Lee | Retired | |
| ITF W25 Goyang | 05/22 01:00 | 25 | [390] Daria Mishina v Ya-Hsuan Lee [294] | 6-3,2-6,3-6 | |
| ITF W25 Changwon | 05/19 01:30 | 29 | [285] Ya-Hsuan Lee v Chanel Simmonds [349] | 3-6,5-7 | |
| ITF W25 Changwon | 05/18 03:00 | 28 | [285] Ya-Hsuan Lee v Xiaodi You [369] | 6-1,6-4 | |
| ITF W25 Changwon | 05/17 02:00 | 27 | [285] Ya-Hsuan Lee v Hanna Chang [444] | 6-2,6-0 | |
| ITF W25 Changwon | 05/16 01:00 | 26 | [285] Ya-Hsuan Lee v So-Ra Lee [301] | 6-2,6-2 | |
| ITF W25 Changwon | 05/15 01:00 | 25 | Ya-Hsuan Lee v Yeong Won Jeong | 6-0,6-2 | |
| ITF W25 Osaka | 04/09 05:00 | 25 | Ya-Hsuan Lee v Akiko Omae | 6-4,6-7,2-6 | |
| ITF W25 Kashiwa | 04/02 01:55 | 25 | [316] Haruka Kaji v Ya-Hsuan Lee [277] | 6-3,6-1 | |
| ITF W25 Kofu | 03/25 01:30 | 45 | [276] Ya-Hsuan Lee v Emina Bektas [388] | 4-6,4-6 | |
| ITF W25 Kofu | 03/25 00:30 | 45 | Ya-Hsuan Lee v Sae Haraguchi | 6-2,6-0 | |
| ITF W25 Kofu | 03/18 04:30 | 45 | [279] Ya-Hsuan Lee v Stephanie Wagner [469] | 1-6,0-6 | |
| ITF W25 Kofu | 03/18 00:30 | 45 | Ya-Hsuan Lee v Catherine Harrison | 6-3,4-6,14-12 | |
| ITF W60 Kyoto | 02/20 02:00 | 25 | [279] Ya-Hsuan Lee v Akiko Omae [454] | 6-7,6-7 | |
| ITF W25 Singapore | 01/21 03:00 | 45 | Ya-Hsuan Lee v Eudice Chong | 0-6,5-7 | |
| ITF W25 Singapore | 01/16 03:45 | 25 | [170] Kurumi Nara v Ya-Hsuan Lee [278] | 7-5,6-4 | |
| ITF W25 Singapore | 01/15 02:00 | 45 | [278] Ya-Hsuan Lee v Peangtarn Plipuech [283] | 6-2,6-1 | |
| ITF W25 Singapore | 01/14 03:00 | 45 | Ya-Hsuan Lee v Ana Veselinovic | 6-3,6-3 | |
| ITF Women Navi Mumbai | 12/18 14:00 | 25 | Mahak Jain v Ya-Hsuan Lee | Retired | |
| ITF Women Solapur | 12/03 05:35 | 25 | [375] Rutuja Bhosale v Ya-Hsuan Lee [269] | Retired | |
| ITF Women Pune | 11/27 04:30 | 25 | [86] Tamara Zidansek v Ya-Hsuan Lee [269] | 6-3,6-3 | |
| WTA Taipei | 11/12 03:45 | 164 | [272] Ya-Hsuan Lee v Tereza Martincova [212] | 3-6,0-6 | |
| WTA Taipei | 11/11 06:10 | 64 | [188] Ayano Shimizu v Ya-Hsuan Lee [272] | 4-6,4-6 | |
| ITF Women Liuzhou | 10/30 05:10 | 25 | [270] Ya-Hsuan Lee v Anhelina Kalinina [109] | 6-4,3-6,3-6 | |
| ITF Women Nanning | 10/22 04:30 | 25 | Ya-Hsuan Lee v Xinyu Gao | 3-6,1-6 |
Lee Ya-hsuan (Chinese: 李亞軒; born 20 July 1995) is a Taiwanese tennis player.
She has career-high WTA rankings of 186 in singles, achieved on 11 April 2016, and 138 in doubles, set on 6 February 2017.
Playing for the Chinese Taipei Fed Cup team, Lee has a win–loss record of 3–13.