Brzeźnica-Kolonia is a village in the administrative district of Gmina Jastrowie, within Złotów County, Greater Poland Voivodeship, in west-central Poland. It lies approximately 11 km west of Jastrowie, 27 km west of Złotów, and 116 km north of the regional capital Poznań. Before 1772 the area was part of Kingdom of Poland, 1772-1945 Prussia and Germany. For more on its history, see Złotów County. Nearby the village are the remains of a Cold War Soviet nuclear military base.