Balmoral Castle () is a large estate house in Aberdeenshire, Scotland, and a residence of the British royal family. It is near the village of Crathie, 9 miles (14 km) west of Ballater and 50 miles (80 km) west of Aberdeen.

The estate and its original castle were bought from the Farquharson family in 1852 by Prince Albert, the husband of Queen Victoria. Soon afterwards the house was found to be too small and the current Balmoral Castle was commissioned. The architect was William Smith of Aberdeen, and his designs were amended by Prince Albert. Balmoral remains the private property of the monarch and is not part of the Crown Estate. It was the summer residence of Queen Elizabeth II, who died at Balmoral on 8 September 2022.

The castle is an example of Scottish baronial architecture, and is classified by Historic Environment Scotland as a category A listed building. The new castle was completed in 1856 and the old castle demolished shortly thereafter.

The Balmoral Estate has been added to by successive members of the royal family, and now covers an area of approximately 50,000 acres (20,000 hectares). It is a working estate, including grouse moors, forestry and farmland, as well as managed herds of deer, Highland cattle, sheep and ponies.