Amlwch is a port town and community in Wales. It is situated on the north coast of the Isle of Anglesey, on the A5025 which connects it to Holyhead and to Menai Bridge. As well as Amlwch town and Amlwch Port, other settlements within the community include Burwen, Bull Bay (Porthllechog) and Pentrefelin. The town has a beach in Llaneilian, and it has significant coastal cliffs. Tourism is an important element of the local economy. At one time it was a booming mining town that became the centre of a vast global trade in copper ore. The harbour inlet became a busy port and significant shipbuilding and ship repair centre, as well as an embarkation point with boats sailing to the Isle of Man and to Liverpool. The community covers an area of about 15 square kilometres.

Anglesey is an island off the north-west coast of Wales. It forms the bulk of the county known as the Isle of Anglesey, which also includes Holy Island and some islets and skerries. The county borders Gwynedd across the Menai Strait to the southeast, and is otherwise surrounded by the Irish Sea. Holyhead is the largest town, and the administrative centre is Llangefni. The county is part of the preserved county of Gwynedd.