Odell Great Wood is an ancient woodland and biological Site of Special Scientific Interest (SSSI) in Odell in Bedfordshire. Located around the centre of the parish of Odell, the site was described by Natural England as "in many respects the best example in Bedfordshire" of wet ash-maple woodland, and in historical sources as "the noblest wood in this county". Being one of the largest of Bedfordshire's ancient woodlands, the wood hosts a wide variety of flora and fauna in its ash, oak and hazel coppice habitat.