Krzysztof Chmielewski (born 8 June 2004) is a Polish competitive swimmer specializing in butterfly and freestyle events. He competed in the 2020 Summer Olympics[1] and the 2024 Summer Olympics.
He is the twin brother of Michał Chmielewski; both competed in the 200m butterfly event of the 2021 European Junior Swimming Championships with Krzysztof winning gold and Michał winning silver.
At the 2024 Summer Olympics, he finished 4th in the final of men's 200 m butterfly event.[2]