Mateusz Kościukiewicz (born 1 May 1986 in Nowy Tomyśl) is a Polish actor. He has been married to director Malgorzata Szumowska since 2012. They have one daughter Alina born on the 3rd of December 2012.
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. In the same year he won Zbyszek 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 Kościukiewicz was named one of the 10 most promising acting talents in Europe in EFP's Shooting Star 2014 showcase.