Glenbuchat Castle is a historic Z plan Scottish castle built in 1590 for John Gordon of Cairnbarrow to mark his wedding. It is located above the River Don, near Kildrummy, Aberdeenshire. The building is roofless, but otherwise in fairly good repair.
The family sold the castle in 1738, and it remained in private hands until the 20th century. James William Barclay bought the castle in 1901, and Colonel James Barclay Milne, his grandson, placed it in state care in 1946. A local club purchased the surrounding parkland in 1948 and gave it to the state to ensure that the castle's surroundings would remain intact. Both the castle and the surrounding land are managed by Historic Environment Scotland as a scheduled ancient monument.
- Simpson, William Douglas (1965). Kildrummy and Glenbuchat castles, Aberdeenshire. Great Britain Ministry of Public Building and Works. H.M.S.O. p. 15.
- Charles McKean, Scottish Chateau (Stroud, 2001), p. 139.
- Calendar State Papers Scotland, vol. 11 (Edinburgh, 1936), p. 479.
- Historic Environment Scotland. "Glenbuchat Castle (SM90151)". Retrieved 8 March 2019.
- Historic Environment Scotland: Visitor guide