Honddu Isaf
| Honddu Isaf | |
|---|---|
| Community | |
| Principal area | |
| Country | Wales |
| Sovereign state | United Kingdom |
| Police | Dyfed-Powys |
| Fire | Mid and West Wales |
| Ambulance | Welsh |
Honddu Isaf ("Lower Honddu") is a community in Powys, Wales, situated immediately north of Brecon in the valley of the lower River Honddu, on either side of the B4520 road to Builth Wells. It is in the historic county of Brecknockshire.