Petra Marčinko

Nationality

Croatia

Born

2005-12-04

Height

1.76 m (5 ft 9 in)

Petra Marčinko (born 4 December 2005) is a Croatian tennis player. Marčinko has a career-high WTA singles ranking of world No. 50, achieved on 8 June 2026, and a best doubles ranking of No. 386, attained on 11 August 2025. She is the current Croatian No. 2. She has won one WTA Tour singles title at the 2026 Morocco Open. Marčinko has also won one WTA 125 singles title as well as 11 titles in singles and four in doubles on the ITF Women's Circuit. She achieved the No. 1 junior ranking on 13 December 2021.