The Nidderdale AONB is an Area of Outstanding Natural Beauty in North Yorkshire, England, bordering the Yorkshire Dales National Park to the east and south. It comprises most of Nidderdale itself, part of lower Wharfedale, the Washburn valley and part of lower Wensleydale, including Jervaulx Abbey and the side valleys west of the River Ure. It covers a total area of . The highest point in the Nidderdale AONB is Great Whernside, above sea level, on the border with the Yorkshire Dales National Park.