Crimple Valley is an area south of Harrogate (North Yorkshire) surrounding the River Crimple (also known as Crimple Beck). It gave its name to the synthetic yarn Crimplene, which was developed at the nearby ICI Laboratory.

The valley seen from the viaduct

It is crossed by the Crimple Valley Viaduct.

53°58′20″N 1°30′55″W / 53.97232°N 1.51525°W / 53.97232; -1.51525