Weißenberg (German) or Wóspork (Upper Sorbian, pronounced [ˈwʊspɔʁk]) is a town in the district of Bautzen, in Saxony, Germany.

The Upper Lusatian town has approximately 3100 inhabitants and is part of the recognized Sorbian settlement area in Saxony.

Weißenberg was founded in 1228 at the Via Regia by Ottokar I of Bohemia and it used to be called Wizenburg, referring to the city's white castle.

On April 17, 1945, the battlefield of World War II came to Weißenberg for the first time, when Soviet artillery shelled the town's train station.

In James P. Hogan's science fiction novel The Proteus Operation, Weißenberg was the location of a time machine in Nazi Germany.