1837 in Wales

Incumbents

• Lord Lieutenant of Anglesey – Henry Paget, 1st Marquess of Anglesey
• Lord Lieutenant of Brecknockshire – Penry Williams
• Lord Lieutenant of Caernarvonshire – Peter Drummond-Burrell, 22nd Baron Willoughby de Eresby
• Lord Lieutenant of Cardiganshire – William Edward Powell
• Lord Lieutenant of Carmarthenshire – George Rice, 3rd Baron Dynevor
• Lord Lieutenant of Denbighshire – Sir Watkin Williams-Wynn, 5th Baronet
• Lord Lieutenant of Flintshire – Robert Grosvenor, 1st Marquess of Westminster
• Lord Lieutenant of Glamorgan – John Crichton-Stuart, 2nd Marquess of Bute
• Lord Lieutenant of Merionethshire – Sir Watkin Williams-Wynn, 5th Baronet
• Lord Lieutenant of Monmouthshire – Capel Hanbury Leigh
• Lord Lieutenant of Montgomeryshire – Edward Herbert, 2nd Earl of Powis
• Lord Lieutenant of Pembrokeshire – Sir John Owen, 1st Baronet
• Lord Lieutenant of Radnorshire – George Rodney, 3rd Baron Rodney
• Bishop of Bangor – Christopher Bethell
• Bishop of Llandaff – Edward Copleston
• Bishop of St Asaph – William Carey
• Bishop of St Davids – John Jenkinson

Events

• 1 April – John Josiah Guest is elected the first chairman of the Merthyr "board of guardians", formed to obtain an act of Parliament for the incorporation of Merthyr.
• 10 May – 21 men are killed in a mining accident at Plas-yr-Argoed, Mold, Flintshire.
• July /August – In the United Kingdom general election:
• *Sir John Edwards, 1st Baronet, defeats Panton Corbett to win Montgomery for the Liberals for a second time.
• *Edwin Wyndham-Quin, 3rd Earl of Dunraven and Mount-Earl joins Christopher Rice Mansel Talbot as MP for Glamorganshire.
• *Sir Stephen Glynne, 9th Baronet, future brother-in-law of Gladstone, becomes MP for Flintshire.
• *William Bulkeley Hughes defeats Charles Henry Paget to win Caernarvon Boroughs for the Tories.
• date unknown
• *Chartist riots in Montgomeryshire.
• *George Rowland Edwards becomes secretary to Lord Clive.
• *Major reconstruction of Penrhyn Castle in north Wales by Thomas Hopper (architect) is largely completed.

Arts and literature

• Henry Mark Anthony exhibits A view on the Rhaidha Glamorganshire at the Royal Academy.
• The Welsh Manuscripts Society is founded at Abergavenny.

New books

English language

• Charles James Apperley – The Chace, the Road, and the Turf
• Eliza Constantia Campbell – ''Tales about Wales''

Music

• Robert Edwards – Caersalem, published in ''Peroriaeth Hyfryd''

Births

• 14 March – Thomas Meyrick, politician
• 26 May – Henry Hicks, geologist
• 3 August – Lewis Pugh Pugh, politician
• 5 August – William Lewis, 1st Baron Merthyr, industrialist
• 6 September – Henry Thomas Edwards, Dean of Bangor
• 22 September – Thomas Charles Edwards, minister, writer and first principal of the University of Wales
• 26 December – Sir William Boyd Dawkins, geologist
• date unknown
• *John Griffiths, mathematician
• *Octavius Vaughan Morgan, politician
• *William Bowen Rowlands, politician

Deaths

• 31 January – John Rolls of The Hendre, English-born landowner, 60
• 19 February – Thomas Burgess, former Bishop of St David's, 80
• 27 September – William Pryce Cumby, Superintendent of Pembroke Dockyard, 66
• 20 November – John Edward Madocks, MP, 51