Blaxhall Common is a nature reserve in the parish of Blaxhall in the East Suffolk District of Suffolk. The reserve is owned by Blaxhall Parish Council and managed by Suffolk Wildlife Trust. It is designated a 45.9-hectare (113-acre) biological Site of Special Scientific Interest as Blaxhall Heath. It is part of the Sandlings Special Protection Area under the European Union Directive on the Conservation of Wild Birds, and of the Suffolk Coast and Heaths Area of Outstanding Natural Beauty. A Bronze Age bowl barrow is a Scheduled Monument.