Letniki [lɛtˈniki] is a village in the administrative district of Gmina Stare Pole, within Malbork County, Pomeranian Voivodeship, in northern Poland. It lies approximately 4 kilometres (2 mi) north of Stare Pole, 13 km (8 mi) north-east of Malbork, and 48 km (30 mi) south-east of the regional capital Gdańsk.

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