Wensleydale is a valley in North Yorkshire, England. It is one of the Yorkshire Dales, which are part of the Pennines. The dale is named after the village of Wensley, formerly the valley's market town. The principal river of the valley is the Ure, which is the source of the alternative name Yoredale. The majority of the dale is within the Yorkshire Dales National Park; the part below East Witton is within the national landscape of Nidderdale.

North Yorkshire is a ceremonial county in the Yorkshire and the Humber and North East regions of England. It borders County Durham to the north, the North Sea to the east, the East Riding of Yorkshire to the south-east, South Yorkshire to the south, West Yorkshire to the south-west, and Cumbria and Lancashire to the west. Northallerton is the county town.