Jaroslawiec is a village in the administrative district of Gmina Postomino, within Slawno County, West Pomeranian Voivodeship, in north-western Poland. It lies approximately 13 kilometres (8 mi) north-west of Postomino, 22 km (14 mi) north-west of Slawno, and 180 km (112 mi) north-east of the regional capital Szczecin.

Before 1945 the area was part of Germany.