Łyśniewo Sierakowickie  Łyśniewo Sierakowickie is a village in the administrative district of Gmina Sierakowice, within Kartuzy County, Pomeranian Voivodeship, in northern Poland. It lies approximately west of Sierakowice, west of Kartuzy, and west of the regional capital Gdańsk. For details of the history of the region, see "History of Pomerania". The village has a population of 542.