1. A whisky-producing region of Scotland that encompasses most of the northern half of the country. It is the largest scotch region, and includes a large number of famous distilleries. By some definitions, it also includes the islands off the coast, with the exception of Islay, which is considered its own region. Highland scotch whiskies typically do not utilize peat smoke in their distillation process, and thus have a more malty character than other scotch.