Borowy Młyn ([bɔˈrɔvɨ ˈmwɨn]) (German: Heidemühl) is a village in the administrative district of Gmina Ryjewo, within Kwidzyn County, Pomeranian Voivodeship, in northern Poland. It lies approximately 3 kilometres (2 mi) north of Ryjewo, 15 km (9 mi) north of Kwidzyn, and 60 km (37 mi) south of the regional capital Gdańsk.

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