Hoy and West Mainland is a national scenic area (NSA) covering parts of the islands of Hoy and Mainland in the Orkney Islands of Scotland, as well as parts of the surrounding sea. It is one of 40 such areas in Scotland, which are defined so as to identify areas of exceptional scenery and to ensure its protection by restricting certain forms of development. The Hoy and West Mainland NSA covers 24,407 ha in total, consisting of 16,479 ha of land with a further 7928 ha being marine (i.e. below low tide).