title: 1966 Carmarthen by-election
text: The Carmarthen by-election, was held in Carmarthen, Wales, on 14 July 1966. The contest was significant in that it resulted in the election of Gwynfor Evans, the first ever Plaid Cymru Member of Parliament. Plaid Cymru's victory in the Carmarthen constituency, a seminal moment for Welsh nationalism, was part of a wider process toward Welsh devolution which eventually led to the establishment of the Welsh Assembly in 1999.
  
  The election was caused by the death of Labour Party Member of Parliament Megan Lloyd George.
  
  Gwynfor Evans' surprise win is credited with laying the foundations for Winnie Ewing's victory for the Scottish National Party at the 1967 Hamilton by-election, an event of equal significance for Scottish nationalism.
  
  Results
  
  See also 
   1882 Carmarthen Boroughs by-election
   1924 Carmarthen by-election
   1928 Carmarthen by-election
   1941 Carmarthen by-election
   1957 Carmarthen by-election
   Carmarthen (UK Parliament constituency)
   Royal Commission on the Constitution (United Kingdom)
  
  References
  
  External links
  BBC – South East Wales – Hall of Fame – Gwynfor Evans
  Election leaflet of Gwynfor Evans, Plaid Cymru candidate in the 1966 Carmarthen by-election
  Welsh by-election results: 1833–1972
  1966 – 67 By Elections
  
  By-elections to the Parliament of the United Kingdom in Welsh constituencies
  Plaid Cymru
  Carmarthen by-election
  Carmarthen by-election
  Carmarthen by-election, 1966
  Elections in Carmarthenshire
  20th century in Carmarthenshire
  Carmarthen by-election