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Welsh: Dowlais
Guest Memorial Library, Dowlais, Merthyr Tydfil - Wide.jpg
The Guest Memorial Library
Dowlais is located in Merthyr Tydfil
 Dowlais shown within Merthyr Tydfil
Population 4,270 (2011 excludes Pant)
OS grid reference SO075075
Principal area Merthyr Tydfil
Ceremonial county Mid Glamorgan
Country Wales
Sovereign state United Kingdom
Post town Merthyr Tydfil
Postcode district CF48
Dialling code 01685 38
Police South Wales
Fire South Wales
Ambulance Welsh
EU Parliament Wales
UK Parliament Merthyr Tydfil and Rhymney
Welsh Assembly Merthyr Tydfil and Rhymney
List of places
Merthyr Tydfil

Coordinates: 51°45′31″N 3°20′30″W / 51.7585°N 3.3416°W / 51.7585; -3.3416

Dowlais is a village and community of the county borough of Merthyr Tydfil, in Wales. At the 2001 census it had a population of 6,646,[1] reducing to 4,270 at the 2011 census having excluded Pant.[2] The name is derived from the Welsh du meaning 'black' and glais meaning 'stream'. Dowlais is notable within Wales and Britain for its historic association with ironworking; once employing, through the Dowlais Iron Company, roughly 5,000 people, the works being the largest in the world.


Dowlais still remains as an electoral ward. Its total population at the 2011 census was 6,926.[3]

Notable buildings[edit]

Little remains of the works that once sustained the community throughout the Victorian era until the 1930s, the two notable buildings that remain are the Engine House, now used a community centre and the stable block which is now social housing.

Dowlais House, which has now been demolished, was once home to John Josiah Guest and Lady Charlotte Guest, and it was at Dowlais House that Lady Guest translated the Mabinogion. The Guest Memorial Library (1863); commissioned by Lady Guest and designed by Charles Barry, still stands.

Sport and leisure[edit]

Dowlais is home to rugby union club, Dowlais RFC.

Notable residents[edit]

External links[edit]


  1. ^ Dowlais Ward 2001 Census: Census Area Statistics: National Statistics. UK government. Retrieved 14 May 2009
  2. ^ "Community population 2011". Retrieved 9 November 2015. 
  3. ^ "Ward population 2011". Retrieved 9 November 2015.