The Barclay Baronetcy, of Pierston in the County of Ayr, is a title in the Baronetage of Nova Scotia. It was created on 22 October 1668 for Robert Barclay. The eighth Baronet sat as Member of Parliament for Newtown. The eleventh Baronet was a colonial administrator, the twelfth Baronet an army officer, and the fourteenth Baronet a naval officer, painter and botanist. Sir Colville Barclay, third son of the twelfth Baronet and father of the fourteenth Baronet, was a diplomat.
- ^ "Current Nova Scotia Baronetcies". Archived from the original on 27 June 2013.