| ITF W35 Le Gosier | 01/25 19:00 | 26 | Eleejah Inisan v Ya-Hsuan Lee | 3-6,2-6 | |
| ITF W35 Le Gosier | 01/23 21:00 | 25 | Sarafina Olivia Hansen v Ya-Hsuan Lee | 1-6,2-6 | |
| ITF W100 Takasaki | 11/20 04:10 | 54 | Momoko Kobori v Ya-Hsuan Lee | Cancelled | |
| ITF W100 Takasaki | 11/13 03:40 | 54 | [452] Miho Kuramochi v Ya-Hsuan Lee [398] | 7-5,6-2 | |
| WTA Seoul | 10/08 04:10 | 19 | [402] Yeonwoo Ku v Ya-Hsuan Lee [382] | 6-1,3-6,6-4 | |
| WTA Seoul | 10/07 05:25 | 14 | [97] Quinn Gleason v Ya-Hsuan Lee [382] | 6-2,6-7,4-6 | |
| ITF W25 Guiyang | 09/12 06:00 | 25 | Yufei Ren v Ya-Hsuan Lee | 6-0,6-1 | |
| ITF W40 Hong Kong | 08/22 02:00 | 25 | [371] Ya-Hsuan Lee v Mananchaya Sawangkaew [303] | 2-6,0-6 | |
| ITF W40 Nanchang | 08/17 03:00 | 26 | [265] Jia-Jing Lu v Ya-Hsuan Lee [385] | 7-5,6-4 | |
| ITF W40 Nanchang | 08/16 06:00 | 25 | Fangzhou Liu v Ya-Hsuan Lee | 4-6,1-6 | |
| ITF W15 Sapporo | 08/12 02:00 | 28 | Ya-Hsuan Lee v Miho Kuramochi | 2-6,3-6 | |
| ITF W15 Sapporo | 08/11 00:50 | 27 | Ya-Hsuan Lee v Riko Kikawada | 1-6,6-2,6-4 | |
| ITF W15 Sapporo | 08/10 02:15 | 26 | Ya-Hsuan Lee v Yuyun Chen | 6-4,6-1 | |
| ITF W15 Sapporo | 08/09 02:30 | 25 | Ya-Hsuan Lee v Yuna Ohashi | 3-6,6-2,6-4 | |
| ITF W15 Sapporo | 08/02 01:00 | 25 | [387] Ya-Hsuan Lee v Funa Kozaki [266] | 3-6,2-6 | |
| ITF W25 Tainan | 06/18 01:55 | 29 | [359] Ya Yi Yang v Ya-Hsuan Lee [364] | 6-3,6-1 | |
| ITF W25 Tainan | 06/17 02:00 | 28 | [479] Daria Lodikova v Ya-Hsuan Lee [364] | 2-6,6-2,2-6 | |
| ITF W25 Tainan | 06/16 02:00 | 27 | [364] Ya-Hsuan Lee v Ayano Shimizu [476] | 6-0,2-6,6-4 | |
| ITF W25 Tainan | 06/15 02:00 | 26 | Ya-Hsuan Lee v Yuka Hosoki | 6-2,6-1 | |
| ITF W25 Tainan | 06/14 03:00 | 25 | Ya-Hsuan Lee v Emma Van Poppel | Retired | |
| ITF W25 Daegu | 06/09 01:00 | 27 | [320] Destanee Aiava v Ya-Hsuan Lee [380] | 6-3,2-6,6-3 | |
| ITF W25 Daegu | 06/08 02:10 | 26 | Fangzhou Liu v Ya-Hsuan Lee | 6-1,2-6,6-7 | |
| ITF W25 Daegu | 06/06 02:55 | 25 | Dayeon Back v Ya-Hsuan Lee | 3-6,6-4,5-7 | |
| ITF W25 Changwon | 06/02 06:45 | 27 | [380] Ya-Hsuan Lee v En Shuo Liang [290] | 6-2,5-7,2-6 | |
| ITF W25 Changwon | 06/02 03:30 | 26 | Ya-Hsuan Lee v Sunam Jeong | 6-4,6-3 | |
| ITF W25 Changwon | 05/31 01:00 | 25 | Ya-Hsuan Lee v BoYoung Jeong | 6-4,6-3 | |
| ITF W25 Goyang | 05/23 00:45 | 25 | Vaidehi Chaudhari v Ya-Hsuan Lee | 6-4,6-4 | |
| ITF W25 Incheon | 05/18 01:00 | 26 | [377] Ya-Hsuan Lee v Ikumi Yamazaki [433] | 3-6,6-7 | |
| ITF W25 Incheon | 05/17 05:55 | 25 | Ya-Hsuan Lee v Shrivalli R Bhamidipaty | 6-3,6-0 | |
| ITF W80 Gifu | 05/06 02:00 | 28 | [499] Ya-Hsuan Lee v Katie Boulter [154] | 1-6,0-6 |
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.