Lord Reay, of Reay in the County of Caithness, is a title in the Peerage of Scotland. Lord Reay is the hereditary Clan Chief of Clan Mackay, whose lands in Strathnaver and northwest Sutherland were known as the Reay Country. The land was sold to the Earls of Sutherland in the 18th century. Lord Reay also refers to a legendary magician in Caithness folklore.