Częstocin [t͡ʂɛ̃sˈtɔt͡ɕin] is a village in the administrative district of Gmina Przywidz, within Gdańsk County, Pomeranian Voivodeship, in northern Poland. It lies approximately 6 kilometres (4 mi) west of Przywidz, 27 km (17 mi) west of Pruszcz Gdański, and 33 km (21 mi) south-west of the regional capital Gdańsk.

For details of the history of the region, see History of Pomerania.