Great Casterton Road Banks is a 0.4-hectare (0.99-acre) biological Site of Special Scientific Interest on the western outskirts of Stamford in Lincolnshire.

[1][2] It is managed by the Lincolnshire Wildlife Trust.

[3] This small site has calcareous grassland on Eastern Jurassic Limestone, and it is dominated by upright brome and tor-grass.

It is the only site in the county which has sulphur clover, and it has two other regionally rare species, greater broomrape and perennial flax.

[4] There is access from Old Great North Road.