| Llanelieu | |
|---|---|
 St Ellyw's Church | |
  Llanelieu Location within Powys | |
| Community | |
| Principal area | |
| Preserved county | |
| Country | Wales |
| Sovereign state | United Kingdom |
| Post town | BRECON |
| Postcode district | LD3 |
| Dialling code | 01874 |
| Police | Dyfed-Powys |
| Fire | Mid and West Wales |
| Ambulance | Welsh |
| UK Parliament | |
| Senedd Cymru – Welsh Parliament | |
Llanelieu (English Llaneleu) is a small settlement and former civil parish (community) in Powys, Wales on the northern edge of the Black Mountains within the Brecon Beacons National Park. It lies within the historic bounds of Brecknockshire. The settlement is now part of the community of Talgarth. The nearest town is Talgarth some 2.5 miles (4.0 km) to the west.