Holydean Castle (pronounced "hollydeen") was a castle sited near Melrose in Bowden, 1.25 miles SW of the village, in the Scottish Borders region of Scotland, and the former Roxburghshire.
This Norman castle was named after the Lords Holydean, who were originally the deans of Kelso Abbey: monks who held great power in what was one of the largest feudal territories and most profitable regions of Scotland.
The peerage title, barony, and castle eventually went to the Kerrs who were made Earls of Roxburghe, and later Dukes.
A stone block rescued from the castle now forms the lintel of the farmhouse doorway, and the castle well is still preserved.
The castle's alternative name is Hobbie Ker's Well.