| Country: | Wales |
| Welsh Name: | Pen-y-wenallt |
| Static Image Width: | 225 |
| Official Name: | Pen-y-wenallt |
| Coordinates: | 52.047°N -4.499°W |
| Community Wales: | Beulah |
| Unitary Wales: | Ceredigion |
| Lieutenancy Wales: | Dyfed |
| Constituency Westminster: | Ceredigion Preseli |
| Post Town: | Newcastle Emlyn |
| Postcode District: | SY23 |
| Postcode Area: | SY |
| Os Grid Reference: | SN282415 |
Pen-y-wenallt is a hamlet in Ceredigion (formerly Cardiganshire), Wales. Pen-y-wenallt lies halfway between Cenarth and Pont Ceri, bordering on Carmarthenshire, and is a constituent of the Parish of Llandygwydd.[1] The River Teifi (or Afon Teifi) flows along its southern border.
Pen-y-wenallt was the home of the seventeenth century theologian, Theophilus Evans.[2]