Leisnig (Upper Sorbian: Lěsnik, pronounced [ˈlʲɪsnʲik]) is a small town in the district of Mittelsachsen, in the free state of Saxony in Germany, 50 kilometers southeast of Leipzig.

The house Markt 13 shows the coat of arms of the Apian family.

In 1944, he was involved in the 20 July Plot to assassinate Adolf Hitler, and was executed for his participation in it.

[3] The museum at Mildenstein Castle was founded in 1890 by the Leisnig Historical and Antiquarian Society.

In the town hall a small gallery is maintained with exhibitions that change several times a year.