| Country: | Wales |
| Coordinates: | 52.902°N -4.386°W |
| Official Name: | Aber-erch |
| Population: | 1354 |
| Population Ref: | (Ward 2011)[1] |
| Static Image Name: | Abererch cottage - geograph.org.uk - 1289591.jpg |
| Static Image Width: | 250 |
| Static Image Caption: | Aber-erch |
| Unitary Wales: | Gwynedd |
| Lieutenancy Wales: | Gwynedd |
| Constituency Welsh Assembly: | Dwyfor Meirionnydd |
| Constituency Westminster: | Dwyfor Meirionnydd |
| Community Wales: | Llannor |
| Postcode District: | LL53 |
| Postcode Area: | LL |
| Post Town: | PWLLHELI |
| Dial Code: | 01758 |
| Os Grid Reference: | SH395365 |
Aber-erch (in Welsh pronounced as /abɛrˈɛrχ/, Welsh for "Mouth of the Erch") is a small village and former civil parish on the Llŷn Peninsula in the Welsh county of Gwynedd. The village lies approximately 1miles east of Pwllheli. A river, the Afon Erch runs through the village.
The parish was abolished in 1934 and incorporated into that of Llannor, now the community of Llannor.[2] It is a mostly Welsh-speaking village[3] and its name is often truncated to "Berch" in Welsh pronounced as /bɛrχ/ in the local Welsh dialect.[4]
There is a primary school, playschool, and a railway station. The church of St Cawrdaf is a grade I listed building.[5]
Aber-erch has a beach called 'Traeth Glan y Don' (which roughly translates to 'Shore of the wave beach') which extends from Morfa'r Garreg, Pwllheli to Pen-ychain. Parking for the beach is near the railway station. From the beach you have a view of Harlech Castle in the east all the way down to Tywyn (on a clearer day even further south) and to the west Pwllheli and the St Tudwal's Islands. Access to the beach is through a footpath next the caravan and camp-site. This beach is ideal for days when the wind is from the north or north west due to the sheltered bay.
The ward includes the village of Y Ffor and the small settlement of Penrhos.