High Dyke is a minor road following a length of the Roman Road Ermine Street in the English county of Lincolnshire, between Woolsthorpe-by-Colsterworth and Ancaster, and onwards nearly to Bracebridge Heath. It is also the name of a small settlement on that road, 1 mile (1.6 km) south-east from Great Ponton, near to the mouth of Stoke Tunnel on the East Coast Main Line. High Dyke is also a name for the general area between Easton and Great Ponton.