This is a list of hillforts in Wales.

Anglesey

Din Sylwy (Bwrdd Arthur) (), contour fort1756. Atlas of Hillforts of Britain and Ireland. Caer Idris Hillfort (), promontory fort1732. Atlas of Hillforts of Britain and Ireland. Caer y Twr (), partial contour fort1738. Atlas of Hillforts of Britain and Ireland. Dinas Gynfor (), promontory fort1763. Atlas of Hillforts of Britain and Ireland. Dinas Porth Ruffydd (), promontory fort1694. Atlas of Hillforts of Britain and Ireland. Mynydd Llwydiarth (), promontory fort1674. Atlas of Hillforts of Britain and Ireland. Parciau hill fort (), promontory fort1744. Atlas of Hillforts of Britain and Ireland. Tan-y-graig, Llanffinan (), contour fort2566. Atlas of Hillforts of Britain and Ireland. Twyn-y-Parc (), promontory fort1762. Atlas of Hillforts of Britain and Ireland. Y Werthyr hillfort (), marsh fort1766. Atlas of Hillforts of Britain and Ireland. Y Werthyr, Llanddeusant (), contour fort1743. Atlas of Hillforts of Britain and Ireland. Ynys-y-Fydlyn (), promontory fort1749. Atlas of Hillforts of Britain and Ireland.

Bridgend County Borough Cae Summerhouse Camp (), partial contour fort1602. Atlas of Hillforts of Britain and Ireland. Chapel Hill Camp, Merthyr Mawr House (), contour fort1604. Atlas of Hillforts of Britain and Ireland. Coed-y-Mwstwr (), contour fort1636. Atlas of Hillforts of Britain and Ireland. Cwm Llwyd (), partial contour fort1621. Atlas of Hillforts of Britain and Ireland. Mynydd Twmpathyddaer (), contour fort1550. Atlas of Hillforts of Britain and Ireland. Mynydd y Gaer (), partial contour fort1637. Atlas of Hillforts of Britain and Ireland. Pen y Castell, Kenfig Hill (), contour fort1553. Atlas of Hillforts of Britain and Ireland. Y Bwlwarcau (), multiple enclosure hillfort1546. Atlas of Hillforts of Britain and Ireland. Y Bwlwarcau, Eastern Enclosure (), hillslope fort1547. Atlas of Hillforts of Britain and Ireland.

Caerphilly County Borough Ruperra hill fort (), contour fort2434. Atlas of Hillforts of Britain and Ireland. Mynydd Twmbarlwm (), contour fort, motte and bailey castle Cadw ref MM044

Carmarthenshire

Ceredigion

City and County of Cardiff Caerau Hillfort (), contour fort1518. Atlas of Hillforts of Britain and Ireland. Castle Field Camp, Graig-llwyn (), partial contour fort2398. Atlas of Hillforts of Britain and Ireland. Llwynda'-ddu (), contour fort2405. Atlas of Hillforts of Britain and Ireland. Wenallt Camp (), hillslope fort1801. Atlas of Hillforts of Britain and Ireland.

City and County of Swansea

Berry Wood (), hillslope fort1551. Atlas of Hillforts of Britain and Ireland. Bishopston Valley Camp (), promontory fort1607. Atlas of Hillforts of Britain and Ireland. Burry Holms (), promontory fort1498. Atlas of Hillforts of Britain and Ireland. Carn Nicholas (), hillslope fort1653. Atlas of Hillforts of Britain and Ireland. Cilifor Top (), contour fort1600. Atlas of Hillforts of Britain and Ireland. Crawley Rocks, Nicholston Burrows (), promontory fort1605. Atlas of Hillforts of Britain and Ireland. Deborah's Hole Camp (), promontory fort2457. Atlas of Hillforts of Britain and Ireland. Fforestnewydd (), level terrain fort1630. Atlas of Hillforts of Britain and Ireland. Graig Fawr, Pontardulais (), contour fort1622. Atlas of Hillforts of Britain and Ireland. Gron Gaer (), partial contour fort1601. Atlas of Hillforts of Britain and Ireland. Harding's Down West Camp (), contour fort1499. Atlas of Hillforts of Britain and Ireland. Harding's Down, East Camp (), partial contour fort1501. Atlas of Hillforts of Britain and Ireland. Harding's Down, North Camp (), hillslope fort1500. Atlas of Hillforts of Britain and Ireland. Hen Gastell, Pen-Clawdd (), hillslope fort1599. Atlas of Hillforts of Britain and Ireland. High Pennard (), promontory fort1608. Atlas of Hillforts of Britain and Ireland. Horse Cliff Camp (), promontory fort2462. Atlas of Hillforts of Britain and Ireland. Lewes Castle Promontory Fort, Rhossili (), promontory fort1549. Atlas of Hillforts of Britain and Ireland. Llanddewi, Port Eynon (), level terrain fort1552. Atlas of Hillforts of Britain and Ireland. Llwynheiernin (), hillslope fort1652. Atlas of Hillforts of Britain and Ireland. Maiden Castle, Oxwich (), promontory fort2459. Atlas of Hillforts of Britain and Ireland. Old Castle Promontory Fort, Rhossili (), promontory fort1548. Atlas of Hillforts of Britain and Ireland. Pen-y-gaer, Pen-clawdd (), partial contour fort1575. Atlas of Hillforts of Britain and Ireland. Redley Cliff Camp (), promontory fort1612. Atlas of Hillforts of Britain and Ireland. Reynoldston Camp (), hillslope fort1554. Atlas of Hillforts of Britain and Ireland. Stembridge Hillfort (), promontory fort1516. Atlas of Hillforts of Britain and Ireland. The Bulwark, Llanmadoc Hill (), hillslope fort1503. Atlas of Hillforts of Britain and Ireland. Thurba Head (), promontory fort2460. Atlas of Hillforts of Britain and Ireland. Tor-Gro (), level terrain fort1515. Atlas of Hillforts of Britain and Ireland. Willoxton Cwm (), hillslope fort1606. Atlas of Hillforts of Britain and Ireland. Worm's Head (), promontory fort1543. Atlas of Hillforts of Britain and Ireland. Yellow Top, Paviland (), promontory fort2458. Atlas of Hillforts of Britain and Ireland.

Conwy County Borough Braich-y-Ddinas (), partial contour fort1690. Atlas of Hillforts of Britain and Ireland. Bryn Euryn (), partial contour fort1219. Atlas of Hillforts of Britain and Ireland. Bryngaer Dinas (), contour fort1673. Atlas of Hillforts of Britain and Ireland. Caer Bach (), partial contour fort1682. Atlas of Hillforts of Britain and Ireland. Caer Caradog (), partial contour fort1174. Atlas of Hillforts of Britain and Ireland. Caer Ddunod (), partial contour fort1173. Atlas of Hillforts of Britain and Ireland. Castell Caer Seion (), contour fort2621. Atlas of Hillforts of Britain and Ireland. Cerrig-y-ddinas, Llangelynin (), partial contour fort1687. Atlas of Hillforts of Britain and Ireland. Dinas Allt Wen, Dwygyfylchi (), contour fort1691. Atlas of Hillforts of Britain and Ireland. Dinorben (), contour fort1168. Atlas of Hillforts of Britain and Ireland. Erw Goch Camp (), level terrain fort1759. Atlas of Hillforts of Britain and Ireland. Mynydd y Gaer (), contour fort1221. Atlas of Hillforts of Britain and Ireland. Pen y corddyn Mawr (), partial contour fort1167. Atlas of Hillforts of Britain and Ireland. Pen y Dinas (), promontory fort1686. Atlas of Hillforts of Britain and Ireland. Pen y Gaer (), contour fort1688. Atlas of Hillforts of Britain and Ireland. Pen-y-Castell, Maenan (), hillslope fort1689. Atlas of Hillforts of Britain and Ireland. Tan-y-Gopa (), contour fort1169. Atlas of Hillforts of Britain and Ireland.

Denbighshire

Bedd-y-Cawr, St Asaph (), promontory fort1528. Atlas of Hillforts of Britain and Ireland. Caer Drewyn (), partial contour fort1179. Atlas of Hillforts of Britain and Ireland. Castell Dinas Bran (), contour fort1159. Atlas of Hillforts of Britain and Ireland. Craig Adwy Wynt (), partial contour fort1184. Atlas of Hillforts of Britain and Ireland. Craig yr Ychain (), partial contour fort1182. Atlas of Hillforts of Britain and Ireland. Dinas Melin-y-Wig (), contour fort1177. Atlas of Hillforts of Britain and Ireland. Foel Fenlli (), partial contour fort2954. Atlas of Hillforts of Britain and Ireland. Gwernheylod Banks (), promontory fort1560. Atlas of Hillforts of Britain and Ireland. Moel Fodig (), contour fort1178. Atlas of Hillforts of Britain and Ireland. Moel Hiraddug (), contour fort1154. Atlas of Hillforts of Britain and Ireland. Moel y Gaer, Bodfari (), partial contour fort1217. Atlas of Hillforts of Britain and Ireland. Moel y Gaer, Llanbedr (), contour fort1171. Atlas of Hillforts of Britain and Ireland. Moel y Gaer, Llantysilio (), contour fort1478. Atlas of Hillforts of Britain and Ireland. Mynydd Rhyd ddu (), contour fort1441. Atlas of Hillforts of Britain and Ireland. Pen y Gaer, Efenechtyd (), contour fort1183. Atlas of Hillforts of Britain and Ireland. Pen y Gaer, Trefor (), level terrain fort1160. Atlas of Hillforts of Britain and Ireland. Penycloddiau (), partial contour fort1155. Atlas of Hillforts of Britain and Ireland. Pwll-y-Clai (), contour fort1175. Atlas of Hillforts of Britain and Ireland. Tan-y-Llan (), hillslope fort1537. Atlas of Hillforts of Britain and Ireland. Vivod (), level terrain fort1296. Atlas of Hillforts of Britain and Ireland.

Flintshire Caer Estyn (), contour fort1162. Atlas of Hillforts of Britain and Ireland. Glol Camp (), contour fort1437. Atlas of Hillforts of Britain and Ireland. Moel Arthur (), contour fort1156. Atlas of Hillforts of Britain and Ireland. Moel Ffagnallt (), contour fort1164. Atlas of Hillforts of Britain and Ireland. Moel y Gaer, Rhosesmor (), contour fort1165. Atlas of Hillforts of Britain and Ireland.

Gwynedd

Merthyr Tydfil County Borough Castell Morlais (), contour fort2422. Atlas of Hillforts of Britain and Ireland.

Monmouthshire Blackfield Wood Camp (), promontory fort2408. Atlas of Hillforts of Britain and Ireland. Cae Camp (), contour fort1645. Atlas of Hillforts of Britain and Ireland. Caerau Camp, Ponthir (), partial contour fort2399. Atlas of Hillforts of Britain and Ireland. Coed y Bwnydd Camp (), contour fort2438. Atlas of Hillforts of Britain and Ireland. Gaer Fawr Camp, Llangwm (), contour fort2428. Atlas of Hillforts of Britain and Ireland. Gaer Hill Camp, Penterry (), contour fort2406. Atlas of Hillforts of Britain and Ireland. Gaer hill fort, Trellech (), multiple enclosure hillfort2424. Atlas of Hillforts of Britain and Ireland. Great House Camp (), contour fort2423. Atlas of Hillforts of Britain and Ireland. Llancayo Camp (), promontory fort2437. Atlas of Hillforts of Britain and Ireland. Llanmelin Wood Camp and Llanmelin Outpost, Caerwent (), contour fort2426. Atlas of Hillforts of Britain and Ireland. Mitchel-troy enclosure (), hillslope fort2439. Atlas of Hillforts of Britain and Ireland. Pen Twyn, Llanfihangel Crucorney (), contour fort2433. Atlas of Hillforts of Britain and Ireland. Piercefield Great Camp (), partial contour fort2412. Atlas of Hillforts of Britain and Ireland. Piercefield Little Camp (), level terrain fort2417. Atlas of Hillforts of Britain and Ireland. Sudbrook Camp (), promontory fort2429. Atlas of Hillforts of Britain and Ireland. The Bulwarks, Chepstow (), promontory fort2430. Atlas of Hillforts of Britain and Ireland. The Larches Camp (), contour fort1792. Atlas of Hillforts of Britain and Ireland. Twyn y Gaer, Llanfihangel Crucorney (), contour fort2435. Atlas of Hillforts of Britain and Ireland. Ysgyryd (Skirrid) Fawr (), contour fort2432. Atlas of Hillforts of Britain and Ireland.

Neath Port Talbot County Borough Buarth y Gaer (), contour fort2403. Atlas of Hillforts of Britain and Ireland. Caer Blaen-y-cwm, Margam (), hillslope fort2411. Atlas of Hillforts of Britain and Ireland. Carn Caca (), partial contour fort1796. Atlas of Hillforts of Britain and Ireland. Cefn yr Argoed (), hillslope fort2404. Atlas of Hillforts of Britain and Ireland. Craig Ty-Isaf (), partial contour fort2401. Atlas of Hillforts of Britain and Ireland. Gaer Fawr Lower Camp, Mynydd y Gaer (), partial contour fort2400. Atlas of Hillforts of Britain and Ireland. Glyn-Neath (), contour fort1795. Atlas of Hillforts of Britain and Ireland. Half Moon Camp, Margam (), contour fort2407. Atlas of Hillforts of Britain and Ireland. Mynydd-y-Castell Camp, Margam (), contour fort2409. Atlas of Hillforts of Britain and Ireland. Pen y Castell, Cwmafan (), contour fort2402. Atlas of Hillforts of Britain and Ireland. Warren Hill, Briton Ferry (), contour fort2421. Atlas of Hillforts of Britain and Ireland.

Newport Castell Prin (), contour fort2425. Atlas of Hillforts of Britain and Ireland. Coed-y-Caerau enclosure complex (), contour fort4353. Atlas of Hillforts of Britain and Ireland.