List of SSSIs in Clwyd

Lists of Sites of Special Scientific Interest in Clwyd comprise:

• List of Sites of Special Scientific Interest in Conwy County Borough (east)
• List of Sites of Special Scientific Interest in Denbighshire
• List of Sites of Special Scientific Interest in Flintshire
• List of Sites of Special Scientific Interest in Powys (small part)
• List of Sites of Special Scientific Interest in Wrexham County Borough