The Cornwall National Landscape covers 958 square kilometres (370 sq mi) in Cornwall, England, United Kingdom; that is, about 27% of the total area of the county. It comprises 12 separate areas, designated under the National Parks and Access to the Countryside Act 1949 for special landscape protection. Of the areas, eleven cover stretches of coastline; the twelfth is Bodmin Moor. The areas are together treated as a single Area of Outstanding Natural Beauty (AONB): all AONBs have been rebranded as National Landscapes since November 2023. Section 85 of the Countryside and Rights of Way Act 2000 places a duty on all relevant authorities when discharging any function affecting land within an AONB to have regard to the purpose of conserving and enhancing natural beauty. Section 89 places a statutory duty on Local Planning Authorities with an AONB within their administrative area to produce a 5-year management plan.

Cornwall is a ceremonial county in South West England. It is recognised by Cornish and Celtic political groups as one of the Celtic nations, and is the homeland of the Cornish people. The county is bordered by the Atlantic Ocean to the north and west, Devon to the east, and the English Channel to the south. The largest settlement is Falmouth, and the county town is the city of Truro.