1791 in Wales

This article is about the particular significance of the year 1791 to Wales and its people.

Incumbents

 * Lord Lieutenant of Anglesey - Henry Paget
 * Lord Lieutenant of Brecknockshire and Monmouthshire – Henry Somerset, 5th Duke of Beaufort
 * 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 - Watkin Williams
 * Lord Lieutenant of Montgomeryshire – George Herbert, 2nd Earl of Powis
 * Lord Lieutenant of Pembrokeshire – Richard Philipps, 1st Baron Milford
 * Lord Lieutenant of Radnorshire – Thomas Harley (politician, born 1730) (from 8 April)
 * Bishop of Bangor – John Warren
 * Bishop of Llandaff – Richard Watson
 * Bishop of St Asaph – Lewis Bagot
 * Bishop of St Davids – Samuel Horsley

Events

 * June - William Jones distributes copies of an address at the Llanrwst eisteddfod, titled To all Indigenous Cambro-Britons, calling on poor Welsh farmers to set up a colony in the United States.
 * Richard Phillips builds Clyne Castle.
 * Peter Williams is excommunicated by the Methodists for publishing Sabellian heresy.
 * Probable date of completion of Methodist chapel at Earlswood, Monmouthshire.
 * Thomas Jones becomes High Sheriff of Radnorshire.

New books

 * Joshua Thomas - New translation of the Baptist "Confession of Faith" issued by the London Assembly of 1689
 * John Williams - An enquiry into the truth of the tradition concerning the discovery of America by Prince Madog ab Owen Gwynedd, about the year 1170 
 * Peter Williams - Llythyr at Hen Gydymaith

Births

 * 23 February - Sir John Cowell-Stepney, baronet, landowner and politician (d. 1877)
 * 5 December - William Henry Yelverton, MP for Carmarthen Boroughs 1832–1835 (d. 1884)
 * date unknown
 * Robert Everett, Independent minister and writer (d. 1875)
 * Thomas Fothergill, ironmaster (d. 1858)

Deaths

 * 11 January - William Williams (Pantycelyn), poet and hymn-writer, 73
 * 13 February - William Parry, artist, 48
 * 19 April - Richard Price, philosopher, 68
 * 17 September - David Morris (hymn writer), 47