Dentdale is a dale or valley in the north-west of the Yorkshire Dales National Park in Cumbria, England. It is the valley of the River Dee, but takes its name from the village of Dent. The dale runs east to west, starting at Dent Head, which is the location of a railway viaduct on the Settle-Carlisle Line.

Dent is a village and civil parish in Cumbria, England, within the historic boundaries of the West Riding of Yorkshire. It lies in Dentdale, a narrow valley on the western slopes of the Pennines within the Yorkshire Dales National Park, 4 miles (6 km) south east of Sedbergh and 8 miles (13 km) north east of Kirkby Lonsdale. At the 2011 census, Dent and Middleton had a total population of 785.