Hoy
an island of the Orkneys, Scotland, separated from the mainland of Scotland by the Pentland Firth, and from the largest island of the Orkneys, known as Mainland, by the Sound of Hoy. It is about 13 miles long and 6 broad; mountainous and heathy, but with fertile tracts. It has an excellent harbor, Long-Hope. At the S. W. of the island there is a detached pillar of rock 450 feet high, known as the Old Man of Hoy.