St. Margaret's Church, Mostyn
|OS grid reference|
|Sovereign state||United Kingdom|
|Senedd Cymru – Welsh Parliament|
Mostyn is a village and community in Flintshire, Wales, and electoral ward lying on the estuary of the River Dee, located near the town of Holywell. It has a privately owned port that has in the past had a colliery and ironworks and was involved in the export of commodities, and nowadays services the offshore wind industry and ships the wings for the Airbus A380 which are manufactured at Broughton.
Mostyn was mentioned in the Doomsday Book of 1086. Henry Bolingbroke (later Henry IV) landed here in 1399 before attacking Richard II at Flint Castle. Coal was mined at Mostyn and iron production started in the mid nineteenth century. The combination of a colliery, iron works and the docks made this a profitable enterprise. Nineteen hundred people were employed at one time. The coal eventually became exhausted and the ironworks closed in 1965. Between 1848 and 1966 there was a railway station in the village on the Chester to Holyhead line. Mostyn once served as a port from which ferries used to sail (until 2004) to Dublin on the Liverpool-Dublin route. Today, manufactured wings for the Airbus A380 aircraft leave Mostyn on the ship Ville de Bordeaux, after travelling down the River Dee by barge from the Airbus wing factory at Broughton, Flintshire. See Itinéraire à Grand Gabarit for more details of the transportation. Mostyn's port area is home to the headquarters of Warwick International Group Limited, manufacturers of bleach activators for detergent applications. 
Port of Mostyn
The Port of Mostyn is privately owned and is one of the oldest ports in the country, having in the past handled cargoes including steel, coal, timber, woodpulp, animal feedstuffs and fertilizers. Nowadays it specialises in the assembly and installation of wind turbines and has been involved in the construction of North Hoyle, (Constructed 2003–2004), Burbo Bank (2006–2007), Rhyl Flats, (2008–2009) Gwynt y Môr (2012–2015) and part of the work involved in the Robin Rigg and Walney windfarms.
Mostyn Hall a Grade I listed large country house set in extensive gardens lies around half a mile to the north-west of the village.
Just down the A548 road from Mostyn at Llanerch-y-Mor is the now closed Mostyn Fun Ship. The ship started life as the Duke of Lancaster, a car ferry and cruise ship. After it was permanently dry-docked in Mostyn, it earned its later name from its new operation as an arcade and bar.
Mostyn is also an electoral ward, coterminous with the community. It elects one county councillor to Flintshire County Council. A by-election was held on 31 July 2014 after the disqualification of the longstanding Independent councillor, Patrick Heesom,
- "Community/Ward population 2011". Retrieved 26 May 2015.
- "History". The Port of Mostyn Ltd. Retrieved 25 April 2016.
- "Overview of the port". The Port of Mostyn Ltd. Retrieved 25 April 2016.
- Mostyn's Fun Ship, BBC Wales, retrieved 13 November 2007
- "Mostyn Dragons F.C." Retrieved 25 April 2016.
- The County of Flintshire (Electoral Arrangements) Order 1998. legislation.gov.uk. Statutory Instruments. 1998. Retrieved 20 December 2018.
- Rory Sheehan (17 July 2014). "Mostyn by-election: Four running for county council seat". Daily Post. North Wales. Retrieved 20 December 2018.
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