Osiecznica [ɔɕɛt͡ʂˈnit͡sa] is a village in Bolesławiec County, Lower Silesian Voivodeship, in south-western Poland. It is the seat of the administrative district (gmina) called Gmina Osiecznica. It lies approximately 13 km (8 mi) north-west of Bolesławiec, and 116 km (72 mi) west of the regional capital Wrocław.

From 1975 to 1998 Osiecznica was in Jelenia Góra Voivodeship.

Notable residents

• Abraham Gottlob Werner (1749-1817), German geologist