Oona Orpana (born 21 January 2001) is a Finnish professional tennis player. On the ITF Junior Circuit, she has a career-high ranking of 41, achieved on 26 February 2018. Orpana won Finnish outdoor and indoor singles championship in 2016, and outdoor singles again in 2019 and 2021. On 29 June 2019, she won her first national doubles title (with Venla Ahti). The pair also won the national outdoor title in 2021. On national level her team is Smash-Kotka. Previously with HVS (Helsinki). In November 2019, she was awarded "Female Tennis Player of the Year" in Finland.