Maciej Gracjan Zakościelny (born 7 May 1980, in Stalowa Wola) is a Polish film, television and theatre actor.

[2] In 2004, he started performing at the Współczesny Theatre in Warsaw and joined the cast of the popular TV crime drama Kryminalni playing the character of Marek Brodecki.

He appeared in Ryszard Zatorski's 2005 romantic comedy Tylko mnie kochaj (Just Love Me).

Between 2008 and 2014, he starred in the historical television series Czas honoru playing the role of Bronek Woyciechowski, one of the Silent Unseens.

Between 2017 and 2019, he played a role in the Diagnoza (Diagnosis) TV show, which earned him a nomination for the Telekamera Award for Best Actor.