Harris is the southern and more mountainous part of Lewis and Harris, the largest island in the Outer Hebrides, Scotland.
Although not an island itself, Harris is often referred to as the Isle of Harris.
The civil parish of Harris is considered to include St Kilda, an uninhabited small archipelago 40 miles (64 km) west-northwest of North Uist, and the uninhabited islet Rockall, which is 230 miles (370 km) west of North Uist.
Reference: Wikipedia