Narborough Bone Mill was a watermill that operated on the River Nar[1] in the west of the English county of Norfolk.

The site is currently owned by the Munford family of Narborough and is undergoing preservation work following a recent lottery grant.

The fact that Narborough watermill was not near a road did not matter, as both its raw materials and its finished products were carried by horse-drawn barge.

Precise details of the reduction process have not been recorded at Narborough, but the usual procedure was that the bones were first boiled to make them brittle and to remove the fat.

The exhumed remains of cemeteries and burial grounds from the north German city of Hamburg were shipped to King's Lynn and taken to the mill to be processed into agricultural fertilizer.