Słonecznik [swɔˈnɛt͡ʂnik] (German: Sonnenberg) is a village in the administrative district of Gmina Pasym, within Szczytno County, Warmian-Masurian Voivodeship, in northern Poland.

It lies approximately 3 kilometres (2 mi) south of Pasym, 15 km (9 mi) north-west of Szczytno, and 26 km (16 mi) south-east of the regional capital Olsztyn.

The village has a population of 160.