Brzęczek [ˈbʐɛnt͡ʂɛk] is a settlement in the administrative district of Gmina Liniewo, within Kościerzyna County, Pomeranian Voivodeship, in northern Poland. It lies approximately 7 kilometres (4 mi) south-east of Liniewo, 24 km (15 mi) east of Kościerzyna, and 42 km (26 mi) south-west of the regional capital Gdańsk.

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