The Nidd Valley Light Railway, was a light railway in upper Nidderdale in North Yorkshire, England. It was owned by Bradford Corporation Waterworks Department and the Corporation also operated its public passenger services. Power & Traction Ltd of London obtained a Light Railway Order for the 6.5-mile (10.5 km) railway from Pateley Bridge to Lofthouse in 1900, but these powers were taken over by Bradford Corporation.