Weeleyhall Wood is a 31 hectare biological Site of Special Scientific Interest north of Clacton-on-Sea in Essex.

[3] It has a variety of woodland types, reflecting diverse soils.

It is mainly pedunculate oak over a layer of coppice hazel and sweet chestnut planted in the nineteenth century.

It has the largest Essex population of climbing corydalis, and four species of fern.

There are two ponds and species-rich damp, grassy rides.