|Ffestiniog shown within Gwynedd|
|OS grid reference|
|Sovereign state||United Kingdom|
|Post town||BLAENAU FFESTINIOG|
Ffestiniog was a parish in Cantref Ardudwy; in 1284, Ardudwy became part of the county of Meirionnydd, which became an administrative county in 1888. Mary Evans (1735–89) founded a sect in Ffestiniog around 1780, whose believers held that she had married Christ in a ceremony held in Ffestiniog church. The sect soon died out after her death. The parish was created an urban district in 1894. On 1 April 1974, under the Local Government Act 1972, Ffestiniog Urban District was abolished, becoming merged with other districts to form Meirionnydd District, which was itself abolished in 1996. Ffestiniog became a community with an elected town council.
Ffestiniog Golf Club (now defunct) was founded in 1893. The club closed at the end of March 2014.
Celtic place-name in *-ākon "place of", then, "place belonging to, territory of" > Old Welsh -auc, -awg > Welsh -og. The form -iog with an additional /i/ can be explained by the preceding element, which is a personal name ending with -i-us : Festinius. The whole name should be *Festiniākon. Probably same name as Festigny (France, e.g.: Festigny, Marne, Festiniacus in 853)
- Office for National Statistics : Neighbourhood Statistics : Census 2011 : Gwynedd
- A Vision of Britain Through Time : Ffestiniog urban District Archived 4 June 2011 at the Wayback Machine. Retrieved 12 January 2010
- Jenkins, Robert Thomas (2009), "EVANS , MARY", Dictionary of Welsh Biagraphy, retrieved 2016-03-23
- "Ffestiniog Golf Club", "Golf’s Missing Links".