Woźniki [vɔʑˈniki] (German: Woischnik) is a town in Lubliniec County, Silesian Voivodeship, Poland, with 4,305 inhabitants (2019).

It is situated in the historic Upper Silesia region, close to the border with Lesser Poland.

According to legend, a Silesian fortress on the nearby Grojec mountain was devastated during the Mongol invasion of Poland in 1241, whereafter the inhabitants moved to the present location.

The Woischnik estates were a possession of the Henckel von Donnersmarck noble family until the town passed to the Silesian Voivodeship of the Second Polish Republic upon the Upper Silesia plebiscite in 1921.

In Wozniki lived famous Silesian writer Jozef Lompa.