Martyna Klatt (born 4 February 1999) is a Polish sprint canoeist and world champion.
She represented the club Energetyk Poznaà  and later became a member of AZSâÂÂAWF Poznaà Â.
In 2017, she won a silver medal at the Junior European Championships in the K-4 500 meters event (with Sandra Ostrowska, Helena Wià Âniewska, and Julia Olszewska). In 2018, she won a silver medal at the U-23 World Championships (with Dominika Wà Âodarczyk, Klaudia Cyrulewska, and Maà Âgorzata Puà Âawska). In 2019, she won gold medals at both the U-23 World Championships and U-23 European Championships in the same event (with Klaudia Cyrulewska, Maà Âgorzata Puà Âawska, and Julia Olszewska). In 2021 and 2022, she won gold medals at the U-23 European Championships in the K-2 500 meters event (both times with Sandra Ostrowska) and K-4 500 meters event (in 2021 with Julia Olszewska, Klaudia Cyrulewska, and Sandra Ostrowska, and in 2022 with Sandra Ostrowska, Helena Wià Âniewska, and Julia Krajewska). In 2022, she also won gold medals at the U-23 World Championships in the K-2 500 meters mix event (with Jakub Stepun), K-2 500 meters event (with Sandra Ostrowska), and K-4 500 meters event (with Sandra Ostrowska, Helena Wià Âniewska, and Julia Olszewska).
At the 2021 European Championships, she won a bronze medal in the K-2 1000 meters event (with Sandra Ostrowska). At the 2023 World Championships, she won a gold medal in the K-2 200 meters event and a silver medal in the K-2 500 meters event (both times with Helena Wià Âniewska).
At the Polish Senior Championships, she won six gold medals:
In the 2023 Przeglàd Sportowy Plebiscite for the best athlete of the year, she, along with Helena Wià Âniewska, took 8th place.