| ITF W80 Gifu | 05/05 00:50 | 27 | Sara Saito v Ya-Hsuan Lee | 2-6,2-6 | |
| 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 Bangalore | 03/08 06:05 | 25 | [163] Brenda Fruhvirtova v Ya-Hsuan Lee [486] | 6-1,6-0 | |
| ITF W40 Bangalore | 03/06 04:30 | 54 | Ya-Hsuan Lee v Weronika Baszak | Retired | |
| ITF W40 Bangalore | 03/05 05:20 | 54 | Ya-Hsuan Lee v Tina Nadine Smith | 6-2,6-3 | |
| ITF W25 Bangalore | 02/26 06:25 | 54 | Ya-Hsuan Lee v Humera Baharmus | 6-3,4-6,9-11 | |
| ITF W60 Kioto | 12/20 04:25 | 25 | [480] Ya-Hsuan Lee v Naho Sato [297] | 5-7,4-6 | |
| ITF W60 Tokio | 11/14 05:05 | 54 | Ya-Hsuan Lee v Eri Shimizu | 2-6,3-6 |
Lee Ya-hsuan (en chino tradicional, 李亞軒: en chino tradicional, 李亞軒; nacido 20 de julio de 1995 en Taipéi) es una jugadora de tenis taiwanésa.
Lee tiene un mejor ranking de la WTA de 186, logrado el 11 de abril de 2016. Su ranking más alto de dobles es 138 logrado el 6 de febrero de 2017.
Jugando en Copa Federación para Taiwán, Lee tiene un registro de 2–13.