The Opernhaus vorm Salztor was an opera house in Naumburg, then Saxe-Zeitz, that opened in 1701. The house was built during the regency of Moritz Wilhelm, Duke of Saxe-Zeitz, on his behalf. In 1716, it burned down and was not rebuilt. In the 15 years of its existence, at least 14 different operas and one play were performed there. One of them survived, Johann David Heinichen's Der glückliche Liebeswechsel oder Paris und Helena, and was revived in 2012 in a concert performance.