Marek Solarczyk (born 13 April 1967) is a Polish Roman Catholic prelate and bishop of Radom.

A native of Wołomin, in east-central Poland, he studied at the Metropolitan Higher Seminary in Warsaw and received his priestly ordination in 1992 at the St. Florian's Cathedral, being incardinated in the Diocese of Warszawa-Praga.

He finished his doctorate in Church History in The Catholic Academy of Warsaw in 1999, and acted as a professor on the subject.

After a brief tenure as parish priest of St. Florian's Cathedral (2009-2011) he was named Auxiliary Bishop of Warszawa-Praga by Pope Benedict XVI on 8 October 2011, receiving the titular see of Hólar, Iceland.

On 4 January 2021, Pope Francis appointed him to succeed Henryk Tomasik as Bishop of Radom.