| Llanychaer | |
|---|---|
 | |
  Llanychaer Location within Pembrokeshire | |
| OS grid reference | SM9835 |
| Community | |
| Principal area | |
| Country | Wales |
| Sovereign state | United Kingdom |
| Post town | Fishguard |
| Police | Dyfed-Powys |
| Fire | Mid and West Wales |
| Ambulance | Welsh |
| UK Parliament | |
| Senedd Cymru – Welsh Parliament | |
Llanychaer (English: church on the Aer, a tributary of the River Gwaun) is a small rural village and parish in the community of Cwm Gwaun, north Pembrokeshire, Wales. It is 2 miles (3.2 km) southeast of the port of Fishguard.