| Mallwyd | |
|---|---|
 Mallwyd village | |
  Mallwyd Location within Gwynedd | |
| OS grid reference | SH862125 |
| Community | |
| Principal area | |
| Country | Wales |
| Sovereign state | United Kingdom |
| Post town | MACHYNLLETH |
| Postcode district | SY20 |
| Dialling code | 01650 |
| Police | North Wales |
| Fire | North Wales |
| Ambulance | Welsh |
| UK Parliament | |
| Senedd Cymru – Welsh Parliament | |
Mallwyd () is a small village at the most southern end of Gwynedd, Wales, in the Mawddwy community, in the valley of the River Dyfi. It lies on the A470 approximately halfway between Dolgellau and Machynlleth, and forms the junction of the A458 towards Welshpool. The nearest villages are Dinas Mawddwy, two miles to the north, and Aberangell a similar distance to the south. The River Dugoed flows into the River Dyfi near the village. The Cambrian Way long-distance walk passes through the village.