National nature reserves in Wales are administered by Natural Resources Wales (formerly the Countryside Council for Wales). There are 67 reserves.
(Gwynedd, Conwy, Wrexham, Flintshire and Denbighshire)
Allt y Benglog
Ceunant Cynfal
Ceunant Llennyrch
Coed Camlyn
Coed Cymerau
Coed Dolgarrog
Coed Ganllwyd
Coed Gorswen
Coed Tremadog
Coed y Rhygen
Coedydd Aber
Coedydd Maentwrog
Cors Geirch
Cwm Glas Crafnant
Cwm Idwal
Fenn's, Whixall and Bettisfield Mosses NNR (partly in England)
Hafod Elwy Moor
Hafod Garregog
Maes y Facrell
Morfa Dyffryn
Morfa Harlech
Rhinog
Y Berwyn
Ynys Enlli
Yr Wyddfa
Cors Bodeilio
Cors Erddreiniog
Cors Goch
Newborough Warren
(Ceredigion, north Powys, north Carmarthenshire)
Allt Rhyd y Groes
Cadair Idris
Claerwen
Coed Rheidol
Cors Caron
Dyfi
Llyn Eiddwen
Rhos Goch
Rhos Llawr Cwrt
Roundton Hill
Stanner Rocks
(Pembrokeshire, south Carmarthenshire, Bridgend, south Powys, Swansea, Monmouthshire and the county boroughs of the South Wales valleys)
Carmel
Coedmor
Coed-y-Cerrig
Coombe Valley Woods
Cors Goch, Llanllwch
Corsydd Llangloffan
Cors y Llyn
Craig Cerrig-gleisiad a Fan Frynych
Craig y Cilau
Crymlyn Bog and Pant y Sais
Cwm Clydach
Dan yr Ogof
Dinefwr Park
Fiddlers Elbow
Gower Coast
Grassholm Island
Kenfig Pool and dunes
Lady Park Wood
Merthyr Mawr
Nant Irfon
Newport Wetlands
Ogof Ffynnon Ddu
Oxwich
Pengelli Forest
Penhow Woodlands
Ramsey Island
Rhos Goch
Skomer Island
Ty Canol
Stackpole
Whiteford
