Whernside is a mountain in the Yorkshire Dales in Northern England. It is the highest of the Yorkshire Three Peaks, the other two being Ingleborough and Pen-y-ghent. It is the highest point in the ceremonial county of North Yorkshire and the historic West Riding of Yorkshire with the summit lying on the county boundary with Cumbria. It is the fifteenth most prominent hill in England.
In shape Whernside forms a long ridge, running roughly north-north-east to south-south-west. The mountain is 6 miles (10 km) north west of Ingleton and 6 miles (10 km) north of Horton-in-Ribblesdale.