Sutton Heath and Bog is an 18.3-hectare (45-acre) biological Site of Special Scientific Interest east of Wansford in Cambridgeshire.

[1][2] This site has two types of grassland, both of which are rare in Cambridgeshire.

They are calcareous grassland on Jurassic limestone and base-poor marshy neutral grassland.

The base poor areas have a diverse variety of plant species, including some which are locally uncommon.

[3] The site is private land but a public footpath runs through the northern end.