Rose Castle is a 16,244 square feet (1,509.1 m2) fortified house in Cumbria, England, on a site that was home to the bishops of Carlisle from 1230 to 2009. It is within the parish of Dalston, 1.5 miles (2.4 km) from Dalston itself, which is four miles southwest of Carlisle. The architects Anthony Salvin and Thomas Rickman were responsible for the alterations which took place in the 19th century.
The historical importance of Rose Castle is shown by its Grade I listing by Historic England.
In September 2015, Rose Castle was listed for sale, with a sale price in excess of £2,950,000. It has since been purchased with the aim to turn it into an international centre of reconciliation.