Dalquharran Castle is a historic mansion located in South Ayrshire, Scotland. The castle was built in the 18th century for Thomas Kennedy, the 9th Earl of Cassilis. It's situated near the village of Dailly, approximately 12 miles northeast of Girvan. The castle was designed by the renowned Scottish architect Robert Adam, known for his neoclassical style.

Dalquharran Castle exemplifies Adam's architectural prowess and features classical elements such as columns, pediments, and intricate detailing. The building is considered a fine example of the Georgian era's grand country houses. Over the years, Dalquharran Castle has undergone various changes in ownership and use. It served as a residence for the Kennedy family for several generations.

However, by the mid-20th century, the castle had fallen into disrepair. In the 1960s, it was used as a school for a brief period. Despite efforts to preserve and restore the castle, it has faced challenges including vandalism and decay. The external structure remains still standing in most parts to show off the fascinating architecture.