GAIRSAY, an island, in the parish of Evie-and-Rendall, county of Orkney; containing 71 inhabitants. This is an isle of the Orkney group, about four miles in circuit, and separated by a strait from Rendall. It consists chiefly of a conical hill of considerable altitude; the whole of the west side is pretty steep, but towards the east it is more level and fertile, and in this quarter, and in the south, the lands are tolerably well cultivated. Here is a small harbour called the Mill-Burn, perfectly secured on all sides by the island itself, and by a holm, which covers the entrance to the south, leaving a passage on each side of it to the anchoring ground.