Abererch (Welsh for "Mouth of the Erch") is a small village and former civil parish on the Lleyn Peninsula in the Welsh county of Gwynedd. The village lies approximately 1 mile (1.6 km) 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. It is a mostly Welsh-speaking village.There is a primary school, playschool, and a railway station.