Blunaki [bluˈnaki] is a village in the administrative district of Gmina Dzierzgoń, within Sztum County, Pomeranian Voivodeship, in northern Poland. It lies approximately 7 kilometres (4 mi) south-west of Dzierzgoń, 17 km (11 mi) east of Sztum, and 69 km (43 mi) south-east of the regional capital Gdańsk.

Before 1772 the area was part of Kingdom of Poland, and in 1772-1945 it belonged to Prussia and Germany. For the history of the region, see History of Pomerania.