Mateusz Bieniek (born 5 April 1994) is a Polish professional volleyball player who plays as a middle blocker for Aluron CMC Warta Zawiercie and the Poland national team.

[1] With Poland, Bieniek won the 2018 World Champion title and took part in 3 Olympic Games – Rio 2016, Tokyo 2020 and Paris 2024, winning a silver medal at the latter.

On 2 April 2015, he was called up to the Polish national team led by Stéphane Antiga.

[2] He debuted in the national team on 28 May 2015 in a match of the 2015 World League against Russia (3–0).

On 10 August 2024, he won the silver medal at the 2024 Summer Olympic Games in Paris.