Stirling Castle is a large green/yellow Scottish cooking apple, with a good flavour, raised near the town of Stirling in the 1830s by John Christie.
The variety became quite popular, and was rated by the Victorian writer Hogg as "an excellent early culinary apple, in use in August and September". Hogg also noted the tree to be "an immense bearer" and commented on its similarity to Hawthornden, another popular Scottish culinary apple variety already in use at the time. It is possible that Stirling Castle is related to Hawthornden.
It remains a popular garden apple variety in the UK and tolerates damp climates.