Valentina Ryser (born 22 March 2001) is a Swiss tennis player. She has a career-high WTA singles ranking of world No. 213, achieved on 17 March 2025. She also has a career-high doubles ranking of No. 330, achieved on 17 February 2025.
Partnering Urszula Radwanska, Ryser won her first $50k tournament in April 2024 in Calvi, France.