Doune Castle is a medieval castle located in the village of Doune in the Stirling council area of Scotland. It was built in the 14th century by Robert Stewart, Duke of Albany, and was used as a royal residence until the early 16th century. The castle was then abandoned until the 17th century, when it was partially restored and used as a hunting lodge.

Doune Castle is a well-preserved example of a medieval Scottish castle, featuring a 100-foot-high gatehouse, a central courtyard, and a range of buildings including a great hall, a kitchen, and a chapel. The castle is also notable for its unique architectural features, including an unusual double spiral staircase that leads to the battlements.

In addition to its historical significance, Doune Castle is also famous for its appearances in film and television. It has been featured in several productions, including the classic film Monty Python and the Holy Grail, where it was used as the location for Castle Anthrax, and the popular TV series Outlander, where it was used as the setting for Castle Leoch.