Krzemieniewo [kʂɛmjɛˈɲɛvɔ] (German: Krummensee) is a village in the administrative district of Gmina Czarne, within Człuchów County, Pomeranian Voivodeship, in northern Poland. It lies approximately 10 kilometres (6 mi) south-east of Czarne, 24 km (15 mi) west of Człuchów, and 136 km (85 mi) south-west of the regional capital Gdańsk.
The village has a population of 589. It has a church dating from 1629.
Krzemieniewo was the site of subcamp Krummensee of the Nazi Stutthof concentration camp near Danzig during the Third Reich.
Coordinates: 53°36′24″N 17°0′38″E / 53.60667°N 17.01056°E