1756 in Wales

Incumbents

• Prince of Wales - George
• Princess of Wales - vacant

  Events

• 5 January - An article appears in The New York Mercury, criticising the work of Lewis Evans in identifying boundaries in his General Map of the Middle British Colonies in America.
• Spring - Completion of Britain's longest single-span bridge, William Edwards' Old Bridge, Pontypridd, over the River Taff, at the third attempt.
• Lewis Morris loses his post as collector of tolls at Aberdyfi.

  Arts and literature

New books

• Hugh Hughes - Cywydd Galarnadd am ynys Minorca...
• Sion Kadwaladr - Einion a Gwenllian

  Music

• Elis Roberts - "Argulus"

  Births

• January - Richard Griffiths, industrial pioneer who opened up transport links into the Rhondda
• 7 June - Edward Davies, writer
• 23 June - Thomas Jones, mathematician
• 4 July - John Evans, surgeon and cartographer
• 18 November - Thomas Burgess, Bishop of St David's
• date unknown
• *Thomas Jones of Denbigh, minister and author
• *Simon Lloyd, Methodist preacher

  Deaths

• 12 June - Lewis Evans, surveyor, 56?
• 5 August - Sir George Wynne, 1st Baronet, landowner and politician, 56
• 14 September - William Parry, antiquarian and fellow of Jesus College, Oxford, 69
• 23 September - John Talbot, judge and MP for Brecon, about 43/44
• 28 October - Charles Noel Somerset, 4th Duke of Beaufort, 47