Dłużek () is a village in the administrative district of Gmina Lubsko, within Żary County, Lubusz Voivodeship, in western Poland. It lies approximately south-west of Lubsko, north-west of Żary, and south-west of Zielona Góra. The village has a population of 347. Notable residents Ernst Gunther, Duke of Schleswig-Holstein (1863-1921) Augusta Victoria of Schleswig-Holstein (1858-1921), last German Empress References Villages in Żary County