Syresham Marshy Meadows is a 17.8-hectare (44-acre) biological Site of Special Scientific Interest west of Silverstone in Northamptonshire.

[1][2] This site consists of two nearby areas of wetland in valleys which drain into the River Great Ouse.

The northern one is a mire on shallow peat, and the southern one is agriculturally unimproved grassland and marsh on diverse soils, which has over a hundred flowering plant species.

[3] A footpath leads into the northern area, but there is no public access to the southern one.