Wirtemberg Castle was the ancestral castle of the rulers of Württemberg on the Württemberg mountain, located 411 m above sea level in the current municipality of Rotenberg in Stuttgart, between Bad Cannstatt and Esslingen am Neckar. Between 1080 and 1819 three castles with this name existed at the location.
The castle was replaced by the classical Württemberg Mausoleum in 1820-24.