| Country: | Wales |
| Static Image Name: | Pensarn Wharf.jpg |
| Static Image Caption: | Pensarn Wharf |
| Constituency Welsh Assembly: | Dwyfor Meirionnydd |
| Coordinates: | 52.829°N -4.111°W |
| Official Name: | Pensarn |
| Community Wales: | Llanfair |
| Unitary Wales: | Gwynedd |
| Lieutenancy Wales: | Gwynedd |
| Constituency Westminster: | Dwyfor Meirionnydd |
| Post Town: | HARLECH |
| Postcode District: | LL46 |
| Postcode Area: | LL |
| Dial Code: | 01341 |
| Os Grid Reference: | SH577279 |
Pensarn (or Pen-sarn) is a small village in the Ardudwy area of Gwynedd, Wales. It is situated on the coastal road between Llanbedr and Harlech.
There is an unstaffed halt on the Cambrian Coast Railway and the Christian Mountain Centre (CMC) which is housed in the old Pensarn Wharf buildings.