| ITF W80 Gifu | 05/04 02:45 | 26 | Ayano Shimizu v Ya-Hsuan Lee | 3-6,5-7 | |
| ITF W80 Gifu | 05/03 01:00 | 25 | [499] Ya-Hsuan Lee v Carol Zhao [176] | 7-6,6-2 | |
| ITF W80 Gifu | 05/01 08:35 | 54 | [499] Ya-Hsuan Lee v Saki Imamura [268] | 4-6,6-3,6-3 | |
| ITF W80 Gifu | 05/01 04:30 | 54 | [499] Ya-Hsuan Lee v Ramu Ueda [424] | 7-5,6-3 | |
| ITF W15 Fukui | 04/30 02:00 | 29 | Miho Kuramochi v Ya-Hsuan Lee | Retired | |
| ITF W15 Fukui | 04/29 01:00 | 28 | Himari Sato v Ya-Hsuan Lee | 1-6,5-7 | |
| ITF W15 Fukui | 04/28 01:00 | 27 | Lisa-Marie Rioux v Ya-Hsuan Lee | 3-6,3-6 | |
| ITF W15 Fukui | 04/27 01:00 | 26 | Mao Mushika v Ya-Hsuan Lee | 6-7,3-6 | |
| ITF W15 Fukui | 04/26 07:05 | 25 | Rio Tsuda v Ya-Hsuan Lee | 2-6,2-6 | |
| ITF W15 Osaka | 04/21 01:00 | 27 | Ya-Hsuan Lee v Natsumi Kawaguchi | 3-6,2-6 | |
| ITF W15 Osaka | 04/20 03:05 | 26 | Ya-Hsuan Lee v Lily Taylor | 6-3,6-1 | |
| ITF W15 Osaka | 04/20 01:35 | 25 | Ya-Hsuan Lee v Anri Nagata | 6-2,6-0 | |
| ITF W25 Osaka | 04/13 03:50 | 26 | [297] Maddison Inglis v Ya-Hsuan Lee [307] | 6-4,6-2 | |
| ITF W25 Osaka | 04/12 09:05 | 25 | [307] Ya-Hsuan Lee v Yuki Naito [289] | 6-4,6-7,6-1 | |
| ITF W25 Osaka | 04/10 07:30 | 62 | [307] Ya-Hsuan Lee v Chieh-Yu Hsu [350] | 3-6,6-2,10-6 | |
| ITF W25 Osaka | 04/10 01:00 | 62 | Ya-Hsuan Lee v Tahlia Kokkinis | 4-6,6-4,11-9 | |
| ITF W25 Osaka | 04/09 01:00 | 62 | Ya-Hsuan Lee v Mio Mushika | 6-2,7-6 | |
| ITF W25 Kashiwa | 04/05 05:45 | 25 | [351] Momoko Kobori v Ya-Hsuan Lee [485] | 6-4,7-6 | |
| ITF W25 Kashiwa | 04/03 03:00 | 19 | Ya-Hsuan Lee v Mei Yamaguchi | 6-3,6-1 | |
| ITF W25 Kofu | 03/29 02:55 | 25 | [466] Pei-Chi Lee v Ya-Hsuan Lee [478] | 6-1,6-1 | |
| ITF W25 Jakarta | 03/20 06:50 | 44 | Ya-Hsuan Lee v I-Hsuan Cho | 0-6,3-6 | |
| ITF W15 Jakarta | 03/16 02:00 | 26 | Ya-Hsuan Lee v Anastasia Kovaleva | Walkover | |
| ITF W15 Jakarta | 03/15 02:30 | 25 | Ya-Hsuan Lee v Nana Kawagishi | 7-6,6-3 | |
| ITF W40 Bengaluru | 03/08 06:05 | 25 | [163] Brenda Fruhvirtova v Ya-Hsuan Lee [486] | 6-1,6-0 | |
| ITF W40 Bengaluru | 03/06 04:30 | 54 | Ya-Hsuan Lee v Weronika Baszak | Retired | |
| ITF W40 Bengaluru | 03/05 05:20 | 54 | Ya-Hsuan Lee v Tina Nadine Smith | 6-2,6-3 | |
| ITF W25 Bengaluru | 02/26 06:25 | 54 | Ya-Hsuan Lee v Humera Baharmus | 6-3,4-6,9-11 | |
| ITF W60 Kyoto | 12/20 04:25 | 25 | [480] Ya-Hsuan Lee v Naho Sato [297] | 5-7,4-6 | |
| ITF W60 Tokyo | 11/14 05:05 | 54 | Ya-Hsuan Lee v Eri Shimizu | 2-6,3-6 | |
| ITF W60 Tokyo | 11/14 01:00 | 54 | Ya-Hsuan Lee v Hwiwon Wi | 6-3,6-1 |
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.