Castle of Fiddes is a 16th-century tower house in Aberdeenshire, Scotland, located around 6 kilometres (3.7 mi) south-west of Stonehaven. It is dated 1592 on a window lintel, with a later date of 1673 on the east wall suggesting a renovation at this time. It was the property of the Arbuthnott family, who sold it in the later 17th century to the Thomson family of Arduthie. It was modernised around 1930 and remains occupied.