Robert Adam, Scottish-English architect and politician, designed the Culzean Castle (born 1728)

Robert Adam was a British neoclassical architect, interior designer and furniture designer. He was the son of William Adam (1689–1748), Scotland's foremost architect of the time, and trained under him. With his older brother John, Robert took on the family business, which included lucrative work for the Board of Ordnance, after William's death.

Culzean Castle is a castle overlooking the Firth of Clyde, near Maybole, Carrick, in South Ayrshire, on the west coast of Scotland. It is the former home of the Marquess of Ailsa, the chief of Clan Kennedy, but is now owned by the National Trust for Scotland. The clifftop castle lies within the 240 acres (97 ha) Culzean Castle Country Park, which also contains a walled garden, other estate buildings that are open to the public, shops and cafés, and a playground. The castle is open to the public throughout the summer, and the wider estate is open all year.