Corselitze, or Korselitse, is a manor house on the island of Falster in the south-east of Denmark. The Neoclassical house was built in 1777 by Johan Frederik Classen, who at the time of his death founded Det Classenske Fideicommis, which owns the estate today.

Falster is an island in south-eastern Denmark with an area of 486.2 km2 (187.7 sq mi) and 43,398 inhabitants as of 1 January 2010. Located in the Kattegat, Belts and Sound area, it is part of Region Zealand and is administered by Guldborgsund Municipality. Falster includes Denmark's southernmost point, Gedser Odde, near Gedser.