Chettisham Meadow is a 0.7-hectare (1.7-acre) biological Site of Special Scientific Interest west of Chettisham, 3 km (2 mi) north of Ely in Cambridgeshire. It is managed by the Wildlife Trust for Bedfordshire, Cambridgeshire and Northamptonshire. The site is grassland on calcareous clay, and evidence survives of ridge and furrow medieval farming. Flowering plants include adder's tongue, cowslip and the uncommon green-winged orchid.