Valentina Ryser (born 22 March 2001) is a Swiss tennis player. She has a career-high WTA singles ranking of No. 236, achieved on 24 June 2024. She also has a career-high WTA doubles ranking of No. 355, achieved on 9 September 2024.
Partnering Urszula Radwanska, Ryser won her first $50k tournament in April 2024 in Calvi, France.