1783 in Wales

Incumbents

• Lord Lieutenant of Anglesey - Sir Nicholas Bayly, 2nd Baronet Henry Paget
• Lord Lieutenant of Brecknockshire and Monmouthshire – Charles Morgan of Dderw
• Lord Lieutenant of Caernarvonshire - Thomas Bulkeley, 7th Viscount Bulkeley
• Lord Lieutenant of Cardiganshire – Wilmot Vaughan, 1st Earl of Lisburne
• Lord Lieutenant of Carmarthenshire – John Vaughan
• Lord Lieutenant of Denbighshire - Richard Myddelton
• Lord Lieutenant of Flintshire - Sir Roger Mostyn, 5th Baronet
• Lord Lieutenant of Glamorgan – John Stuart, Lord Mountstuart
• Lord Lieutenant of Merionethshire - Sir Watkin Williams-Wynn, 4th Baronet
• Lord Lieutenant of Montgomeryshire – George Herbert, 2nd Earl of Powis
• Lord Lieutenant of Pembrokeshire – Sir Hugh Owen, 5th Baronet
• Lord Lieutenant of Radnorshire – Edward Harley, 4th Earl of Oxford and Earl Mortimer
• Bishop of Bangor – John Moore John Warren
• Bishop of Llandaff – Richard Watson
• Bishop of St Asaph – Jonathan Shipley
• Bishop of St Davids – Edward Smallwell

Events

• 20 August - Thomas Charles marries Sally Jones and settles in Bala.
• 26 September - Industrialist and slave-owner Richard Pennant is created 1st Baron Penrhyn in the county of Lough.
• Welsh emigrant Evan Williams founds a whiskey distillery in Bardstown, Kentucky, United States, which will still be operating in the 21st century.

Arts and literature

New books

• Julia Ann Hatton - ''Poems on Miscellaneous Subjects''

Music

• Evan Hughes - ''Rhai Hymnau Newyddion o Fawl i'r Oen''

Births

• 11 February - Thomas Richard, minister
• 16 March - Henry Williams-Wynn, politician
• May - Cadwaladr Jones, minister and literary editor
• unknown dates
• *Hugh Jones, archdeacon of Essex

Deaths

• 19 June - Henry Lloyd, soldier and military writer
• 7 August - Thomas Llewellyn, Baptist minister and writer, 63?
• 2 September - Edward Edwards, academic
• 6 September - Anna Williams, friend of Dr Johnson, 77?
• 16 December - Sir William James, 1st Baronet, naval commander, 61-62