Martyna Kubka (born 19 April 2001) is a Polish tennis player. She has a career-high WTA ranking of 347 in singles, achieved on 22 April 2024, and a career-high WTA ranking of 175 in doubles, achieved on 22 April 2024.
Kubka made her WTA Tour main-draw debut at the 2021 WTA Poland Open in the doubles competition. Her singles tour-level debut was at the 2022 Poland Open.
Kubka made her debut for Poland in the Billie Jean King Cup in November 2023 playing doubles in the Finals.