| Llyswen | |
|---|---|
  Llyswen Location within Powys | |
| 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 | |
Llyswen is a small village in Powys, Wales on the west bank of the River Wye. It was formerly within the county of Brecknockshire and now forms part of the Community of Bronllys. The nearest town is Brecon approximately 8 miles (13 km) to the south-west.