Knapdale forms a rural district of Argyll and Bute in the Scottish Highlands, adjoining Kintyre to the south, and divided from the rest of Argyll to the north by the Crinan Canal. It includes two parishes, North Knapdale and South Knapdale. The area is bounded by sea to the east and west, whilst the sea loch of West Loch Tarbert almost completely cuts off the area from Kintyre to the south. The name is derived from two Gaelic elements: Cnap meaning hill and Dall meaning field.

National scenic area (NSA) is a conservation designation used in Scotland, and administered by NatureScot on behalf of the Scottish Government. The designation's purpose is to identify areas of exceptional scenery and to protect them from inappropriate development. There are currently 40 national scenic areas (NSAs) in Scotland, covering 13% of the land area of Scotland. The areas protected by the designation are considered to represent the type of scenic beauty "popularly associated with Scotland and for which it is renowned". As such they tend to be mainly found in remote and mountainous areas, with a review in 1997 noting a potential weakness of national scenic areas was that the original selection placed undue emphasis on mountainous parts of the country. National scenic areas do however also cover seascapes, with approximately 26% of the total area protected by the designation being marine. The designation is primarily concerned with scenic qualities, although designated national scenic areas may well have other special qualities, for example related to culture, history, archaeology, geology or wildlife. Areas with such qualities may be protected by other designations that overlap with the NSA designation.