Dejk (Polish pronunciation: [dɛjk]) is a village in the administrative district of Gmina Chmielno, within Kartuzy County, Pomeranian Voivodeship, in northern Poland. It lies approximately 3 kilometres (2 mi) west of Chmielno, 10 km (6 mi) west of Kartuzy, and 38 km (24 mi) west of the regional capital Gdańsk.

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