District of Arfon
|• Succeeded by||Gwynedd|
It was created by the Local Government Act 1972 on 1 April 1974 from part of the administrative county of Caernarvonshire, namely the municipal boroughs of Bangor and Caernarvon, the Bethesda urban district, the rural districts of Ogwen, and the Gwyrfai Rural District, less the parishes of Beddgelert and Clynnog.
Arfon means "opposite Anglesey" ('Ar' + 'Fôn' which is the soft mutation of 'Môn', the Welsh name for Anglesey). The name is ancient and has been used to designate the area since early medieval times. In the Middle Ages Cantref Arfon was an administrative unit of the Kingdom of Gwynedd. Arfon survived as a geocultural name (Welsh: bro) over the centuries and remains in use today. It is also sometimes found as a personal name (e.g. Arfon Griffiths).