Otto Virtanen (born 21 June 2001) is a Finnish tennis player. Virtanen has a career high ATP singles ranking of 176 achieved on 21 November 2022. He also has a career high ATP doubles ranking of 270 achieved on 31 October 2022. Virtanen won the Boys' Doubles title in the Wimbledon Championships in 2018. In December 2018 Virtanen won singles tournament in Orange Bowl. He won his first Challenger title at the 2022 Trofeo Faip–Perrel and reached the top 200 on 7 November 2022 at world No. 195.