The Nebstone is a notable rock found close to the Swastika Stone on the northern edge of Ilkley Moor in West Yorkshire, England. It has the appearance of the lid of a grand piano, and is located a few hundred yards to the west of the Keighley Road. Like many of the rocks on Ilkley moor, it bears evidence for cup and ring marks, although for such a prominent rock it has relatively few possible cup marks.