Lee Ya-hsin (born 10 April 2001) is a Taiwanese professional tennis player. On 26 May 2025, she reached her career-high doubles ranking of world No. 321. She has won 13 doubles titles on the ITF Circuit. She also reached her best singles ranking of No. 931 on 12 August 2019.
Lee won her first major ITF title at the W50 doubles tournament in Fuzhou, China.