Białachówko [bjawaˈxufkɔ] is a village in the administrative district of Gmina Zblewo, within Starogard County, Pomeranian Voivodeship, in northern Poland. It lies approximately 4 kilometres (2 mi) south-east of Zblewo, 13 km (8 mi) south-west of Starogard Gdański, and 54 km (34 mi) south of the regional capital Gdańsk.

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