Breńsk [brɛɲsk] is a village in the administrative district of Gmina Rzeczenica, within Człuchów County, Pomeranian Voivodeship, in northern Poland. It lies approximately 6 kilometres (4 mi) south-west of Rzeczenica, 24 km (15 mi) north-west of Człuchów, and 126 km (78 mi) south-west of the regional capital Gdańsk.

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