He grew up in Nowy Tomyśl, where he attended the General and Post-Secondary Schools.

[1] In 2010 he received the Karlovy Vary Film Festival Award for the best actor (with Filip Garbacz) for the role in Paweł Sala's film Matka Teresa od kotów.

[2][3] In 2011 he received an Eagle in category "Discovery of Year" for the role in All That I Love.

[2] In 2013 Mateusz Kościukiewicz was named one of the 10 most promising acting talents in Europe in EFP's Shooting Star 2014 showcase.

[4] In January 2020 The Informer were released in the US cinemas where Kościukiewicz plays Stazek in his first "Hollywood" role.