Valentina Ryser (born 22 March 2001) is a Swiss tennis player.
Ryser has a career high WTA singles ranking of world No. 247 achieved on 22 April 2024. She also has a career high WTA doubles ranking of No. 525 achieved on 24 July 2023.
Partnering Urszula Radwanska, Ryser won her first $50k tournament in April 2014 at the ITF Calvi in France.