Dziemiany (, or Sophienwalde during the Nazi occupation) is a village in Koscierzyna County, Pomeranian Voivodeship, in northern Poland. It is the seat of the gmina (administrative district) called Gmina Dziemiany. It lies approximately south-west of Koscierzyna and south-west of the regional capital Gdansk. It was the location of the Nazi concentration camp Dzimianen - Sophienwalde, a subcamp of the concentration camp Stutthof. Here the SS-Truppenübungsplatz Westpreußen was located during the occupation of Poland in World War II.