The Cornwall Area of Outstanding Natural Beauty covers 958 square kilometres (370 sq mi) in Cornwall, England, UK; 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).
The areas were designated in 1959, except for the Camel estuary which was added in 1981. The list of designated areas is:
- Hartland (Morwenstow and Kilkhampton)
- Pentire Point to Widemouth
- Camel Estuary
- Trevose Head to Stepper Point (Bedruthan to Padstow)
- St Agnes
- Godrevy to Portreath
- West Penwith
- South Coast - Western (Lizard and Marazion to Helford River)
- South Coast - Central (Mylor & the Roseland to Porthpean)
- South Coast - Eastern (Par Sands to Looe)
- Rame Head
- Bodmin Moor
There are separate AONBs covering the Isles of Scilly and the Tamar Valley (which is partly in Cornwall).
The first Cornwall AONB Management Plan was adopted by the members of the Cornwall AONB Partnership  in July 2004.
The latest Cornwall AONB Management Plan was adopted by Cornwall Council and the members of the Cornwall AONB Partnership  in February 2011.