Certain |
Possible |
Questionable Doubtful |
Rejected |
|
Confidence is a statement of the site as a medieval fortification or palace |
| Name | Alternative Name(s) | Type | Remains |
| Aberystwyth Castle | Llanbadarn Fawr; Lampadervaur | Masonry Castle | Major |
| Aberystwyth Town Walls | Lanbadar | Urban Defence | Nothing visible | Adpar Motte, Llandyfriog | Atpar | Timber Castle | Earthworks |
| Blaenporth Castle | Castell Gwythan; Ralphs Castle; Y Gaer; Blaen Porth Hodnant; Castell Gwithian; Brynawelan | Timber Castle Urban Defence |
Earthworks |
| Bryn Maen Caerau | Bryn Cynon Enclosure, Cellan | Timber Castle | Earthworks | Bwlch y Castell | Uncertain | Uncertain |
| Caer Fach, Cribyn | Timber Castle | Earthworks | |
| Cardigan Castle | Aberteifi | Masonry Castle Timber Castle |
Masonry ruins/remnants | Cardigan Old Castle Motte | Aberteifi; Dingeraint; Dingereint | Timber Castle | Earthworks |
| Cardigan Town Walls | Aberteifi | Urban Defence | Uncertain | Castell Abereinon | Cilcraig; Cil y Craig | Timber Castle | Nothing visible |
| Castell Bugad | Timber Castle | Earthworks | |
| Castell Cadwaladr, Caer Penrhos | Llanrhystud; Caer Penrhoys; Caerpenrhos; Gaer Penrhos | Timber Castle | Earthworks | Castell Cadwgan, Aberaeron | Timber Castle | Nothing visible |
| Castell Caer Wedros | Caerwedros; Gaer Odris; Llwyn Davydd Castell; Castell Llwyndafydd | Timber Castle | Earthworks | Castell Cottage, Penbontrhydyfothau | Timber Castle | Uncertain | Castell Cwmere, Llanfihangel Ystrad | Temple Bar | Timber Castle | Earthworks | Castell Dol Wllf, Llanwenog | Castell Santesau; Castell Sant Esau; Castell Sant Esen | Timber Castle | Cropmarks/slight earthworks | Castell Du, Llanwnen | Llanwnnen, Castell Ddu | Timber Castle | Cropmarks/slight earthworks |
| Castell Fflemish | Llanbadarn-Odwyn | Timber Castle | Earthworks |
| Castell Gwallter, Geneu'r Glyn | Castell Gwalter; Penweddig; Pengwern; Llanfihangel Geneur Glyn; Castell Walter; Gaer Brynhir; Castell Penwedig; Chastell Gwalter | Timber Castle | Earthworks |
| Castell Gwarcwm, Rhosgoch | Stradpeithyll; Ystrad Peithyll; Strath Peithyll; Rhydydomen; Razos Castle; Ystrad Peithyl, Castell Peithyll Rhosgoch. | Timber Castle | Earthworks | Castell Gwynionydd, Llandysul | Coedfon | Masonry Castle Timber Castle |
Earthworks |
| Castell Hywel, Llandysul | Humphrey Castle; Castell Hwmphre; Valley of Cletwr; Howels Castle; Castell Howell; Castell Wmphre; Castell Hywell | Timber Castle | Earthworks |
| Castell Llwyn Gwinau | Llwyn-Gwynau | Timber Castle | Earthworks |
| Castell Mabwinion | Uncertain | Earthworks | Castell Moeddyn Fach, Llanarth | Moyddin Fach; Moeddyn-fach; Moeddin Fach | Timber Castle | Earthworks |
| Castell Myn, Llangrannog | Uncertain | Nothing visible | |
| Castell Nant y Garan, Llandyfroig | Nant y Garau; Nant y Carau; Llanfair–Orllwyn | Timber Castle | Earthworks |
| Castell Olwen, Lampeter | Timber Castle | Earthworks | Castell Pistog | Bangor | Timber Castle | Cropmarks/slight earthworks | Castell Pridd, Penbryn | Timber Castle | Nothing visible |
| Castell Trefilan | Trifilan | Masonry Castle Timber Castle |
Earthworks |
| Crug y Whil, Llanwenog | Crug y chwil | Timber Castle | Uncertain |
| Crugyn Dimai, Llanfarian | Lower Llanabadarn y Creuddyn | Timber Castle Siege Work |
Earthworks |
| Cwm Meurig Isaf | Castell Ystrad–Meurig; Castell Pridd | Timber Castle | Earthworks |
| Cyrnau Castell, Llanddewi Brefi | Cyrnau; Brobwll | Timber Castle | Nothing visible |
| Dinerth Castle, Castell Allt Craig Arth | Hero; Monachty; Dinierth; Dineirth | Timber Castle | Earthworks |
| Domen Las, Ysgubor y Coed | Abereinion; Aberdyfi; Aberdovey; Glan Dyfi; Tomen Las; Domenlas | Timber Castle | Earthworks | Felin Cwrrws, Llandyfroig | Felin Cwrrs; Felin Cwrws; Henllan | Timber Castle | Earthworks | Gaer, Llandygwydd | Timber Castle | Earthworks | Goedmore | Coedmawr; Coedmor; Castell Cevel; Llangoedmor; Coit Maur | Uncertain | Nothing visible |
| Lampeter Church Mound | Timber Castle | Nothing visible | Llanddywy manor of Bishop of St Davids | Llanddewi | Palace | Nothing visible | Llanrhyadr | Uncertain | Uncertain | Llwynduris Castle Mound | Llandygwydd; Parc y Castell; Llwyndyris | Timber Castle | Earthworks |
| Llyswen Manor Hall | Uncertain | Nothing visible | Manian Fawr, St Dogmaels | Timber Castle | Earthworks | Nant yr Arian Castle | Old Goginan Castle; Castell Goginan | Timber Castle | Nothing visible | Nantperchellan | St Dogmaels; Nan Perchellan | Timber Castle | Earthworks |
| Parc y Castell | Llandygwydd | Timber Castle | Cropmarks/slight earthworks |
| Peithyll | Uncertain | Nothing visible | Pen y Castell, Llanilar | Garth Grugyn | Timber Castle | Earthworks | Penycastell, Eithin-gleision | Upper Lledrod; Pen y Castell | Timber Castle | Earthworks | Rheidol Castle | Plas Crug | Pele Tower Fortified Manor House |
Nothing visible | St Marys Old Church Motte | Llanfair Treflygen; Llandyfriog Castle | Timber Castle | Earthworks |
| Stephens Castle, The College, Lampeter | Llan Ystyffan; Castell Pont Steffan; Castell Pont Stuffan; Castle of Mabwynion; Llanbedr; Pont Stephen | Timber Castle | Earthworks |
| Stradmore Motte | Timber Castle | Earthworks | |
| Tan y Castell | Aberrheidol; Rhyd y Felin; Llanychaiarn; Tyn y Castell; Tan y Bwlch; Old Aberystwyth; Aberstuyth | Masonry Castle Timber Castle |
Earthworks |
| Tir Bach, Cilcennin | Timber Castle | Earthworks | |
| Tomen Llanio, Llanddewi Brefi | Castle of Richard de la Mare | Timber Castle | Earthworks | Tomen Rhyd Owen, Llandysul | Timber Castle | Earthworks | Ty Mawr, Llanrhystyd | Timber Castle | Uncertain |
| Ystrad Meurig Castle | Henblas; Meyric | Masonry Castle Timber Castle |
Masonry foundations |