Callaly Castle is a Grade I listed building and a substantial country house to the north of the village of Callaly, which is some 14.5 km (9.0 mi) to the west of Alnwick, Northumberland, England.

It is situated near the site of a 12th-century motte castle and an Iron Age hill fort.

The gardens were reconfigured in 1770, possibly by one or more the Kennedy brothers, leading gardeners and nurserymen, who created a similar three walled pleasure garden at Croxdale Hall in County Durham for the Salvin family who were also Catholic and had family connections with the Clavering family.

Alterations were made in the 18th and 19th centuries followed by major restoration work by the new owner Alexander Browne in the 1890s.

In 1987 it was divided into residential wings by the architect Kit Martin.