Maryna Viktarauna Litvinchuk, née Pautaran/Poltoran (Belarusian: Марына Віктараўна Літвінчук (Паўтаран); Łacinka: Maryna Viktaraŭna Litvinčuk, born 12 March 1988) is a Belarusian sprint canoeist.

At the 2012 Summer Olympics in London, she won a bronze medal in the K-4 500 metres with teammates Volha Khudzenka, Iryna Pamialova, and Nadzeya Papok.

[2] At the 2016 Summer Olympics in Rio de Janeiro, she won bronze in the same event with Khudzenka, Papok, and Marharyta Makhneva.

[3] At the 2020 Summer Olympics, she won a silver medal in Women's K-4 500 metres.

[5] She is married to Belarusian sprint canoeist Artur Litvinchuk.