Bącz is a village in the administrative district of Gmina Kartuzy, within Kartuzy County, Pomeranian Voivodeship, in northern Poland. It lies approximately 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 268. Here was born Józef Kos.