Mateusz Kosciukiewicz (born 1 May 1986 in Nowy Tomysl) is a Polish film actor.
He grew up in Nowy Tomysl, where he attended the General and Post-Secondary Schools.
He studied at the Kraków State Higher Theater School.
In 2010 he received the Karlovy Vary Film Festival Award for the best actor (with Filip Garbacz) for the role in Pawel Sala's film Matka Teresa od kotów.
In the same year he won Zbigniew Cybulski Award.In 2011 he received an Eagle in category "Discovery of Year" for the role in All That I Love.
He was also nominated in category "Best Actor".In 2013 Mateusz Kosciukiewicz was named one of the 10 most promising acting talents in Europe in EFP's Shooting Star 2014 showcase.He has been married to director Malgorzata Szumowska since 2011.
They have one daughter Alina born on 3 December 2012.
In January 2020 The Informer will be released in the US cinemas where Kosciukiewicz plays Stazek in his first "Hollywood" role.