List of Scheduled Monuments in Blaenau Gwent
is a unitary authority area in eastern South Wales. It has three heavily industrialised valleys, which are the setting for the eight post-medieval scheduled monuments. The uplands have three, possibly four prehistoric monuments, and a medieval site is in the south of the borough. There are 13 scheduled sites in total. The county borough was part of the Historic County of Monmouthshire, although shifting boundaries mean Y Domen Fawr round cairn was formerly in Glamorgan.
Scheduled Ancient Monuments have statutory protection. It is illegal to disturb the ground surface or any standing remains. The compilation of the list is undertaken by Cadw Welsh Historic Monuments, which is an executive agency of the National Assembly of Wales. The list of scheduled monuments below is supplied by Cadw with additional material from RCAHMW and Glamorgan-Gwent Archaeological Trust.
Scheduled Monuments in Blaenau Gwent
| Image | Name | Site type | Community | Location | Details | Period | SAM No & Refs |
| Y Domen Fawr round cairn | Round cairn | Ebbw Vale | , SO166170 | Early Bronze Age burial cairn | Prehistoric | GM588 | |
| Afon Sirhowy Hut Circle | Hut circle settlement | Tredegar | , SO119119 | Bronze Age hut circle, 5.3m in diameter | Prehistoric | MM347 | |
| Twyn Bryn March round cairn | Round cairn | Tredegar | , SO137123 | The best preserved of a group of Bronze Age burial cairns, 5m across | Prehistoric | MM344 | |
| Cefn Manmoel cross-ridge dyke | Cross Ridge Dyke | Cwm, | , SO171057 | Linear defensive earthwork which may be from neolithic or medieval period. This site crosses the border into Caerphilly | Unknown | MM345 | |
| St Illtyd's Motte | Motte | Llanhilleth | , SO217019 | Castle Mound next to the church. Probably destroyed in 1233 | Medieval | MM141 | |
| Sirhowy Ironworks | Industrial monument | Tredegar | , SO143101 | Ironworks from 1778, site now open to the public | Post-Medieval/Modern | MM185 | |
| Trefil Quarries North | Quarry | Tredegar | , SO117140 | Limestone Quarry opened in 1794 | Post-Medieval/Modern | MM338 | |
| Clydach Coal Level | Tramroad | Brynmawr | , SO200121 | Rock-cut coal levels from 1812 and tramroad | Post-Medieval/Modern | MM264 | |
| Cefn Golau | Cholera cemetery | Tredegar | , SO138075 | Cemetery from the 1830s and 40s Cholera epidemics | Post-Medieval/Modern | MM287 | |
| Clydach Rail Road | Tramroad | Brynmawr | , SO202122 | Stretch of Clydach Rail Road near Brynmawr, with causeway and stone arched bridge known as Hafod Arch | Post-Medieval/Modern | MM263 | |
| Marine Colliery Pumping Engine | Industrial monument | Cwm | , SO188042 | Steam pumping engine, relocated to near the colliery entrance | Post-Medieval/Modern | MM218 | |
| Mynydd Bedwellty Winding Engine | Industrial monument | Tredegar | , SO153058 | Incline haulage winding engine from the 1850s | Post-Medieval/Modern | MM181 | |
| Trefil Tramroad | Tramroad | Tredegar | , SO134125 | Early Tramroad connecting to Trefil Quarries | Post-Medieval/Modern | MM339 |