:1816 in Wales

• Lord Lieutenant of Anglesey – Henry Paget, 1st Marquess of Anglesey{{cite book|author=Edward Breese|title=Kalendars of Gwynedd; or, Chronological lists of lords-lieutenant [&c.] ... for the counties of Anglesey, Caernarvon, and Merioneth|year=1873|page=24}}{{cite book | author=J.C. Sainty | author-link=John Sainty (civil servant) | title=List of Lieutenants of Counties of England and Wales 1660-1974 | publisher=Swift Printers (Sales) Ltd | location=London | year=1979}}{{cite book | last = Nicholas | first = Thomas | title = Annals and antiquities of the counties and county families of Wales | publisher = Genealogical Pub. Co | location = Baltimore | year = 1991 | isbn = 9780806313146 | page=695}}{{cite book|title=Cylchgrawn Hanes Cymru|publisher=University of Wales Press|year=1992|page=169}}
• Lord Lieutenant of Brecknockshire and Monmouthshire – Henry Somerset, 6th Duke of Beaufort{{cite book| author=Edwin Poole|title=The Illustrated History and Biography of Brecknockshire from the Earliest Times to the Present Day: Containing the General History, Antiquities, Sepulchral Monuments and Inscriptions|publisher=Edwin Poole|year=1886|page=378}}
• Lord Lieutenant of Caernarvonshire – Thomas Bulkeley, 7th Viscount Bulkeley{{cite book|author=Edward Breese|title=Kalendars of Gwynedd; or, Chronological lists of lords-lieutenant [&c.] ... for the counties of Anglesey, Caernarvon, and Merioneth|year=1873|page=26}}
• Lord Lieutenant of Cardiganshire – Thomas Johnes (until 23 April)
• 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{{cite journal|journal=Old Wales: Monthly Magazine of Antiquities for Wales and the Borders|title=not known|author-link=William Retlaw Williams|publisher="Old Wales" Office|year=1907|volume=3|page=106}}
• Lord Lieutenant of Glamorgan – John Crichton-Stuart, 2nd Marquess of Bute{{cite book | last = Nicholas | first = Thomas | title = Annals and antiquities of the counties and county families of Wales | publisher = Genealogical Pub. Co | location = Baltimore | year = 1991 | isbn = 9780806313146 | page=612}}
• Lord Lieutenant of Merionethshire – Sir Watkin Williams-Wynn, 5th Baronet{{cite book|author=Edward Breese|title=Kalendars of Gwynedd; or, Chronological lists of lords-lieutenant [&c.] ... for the counties of Anglesey, Caernarvon, and Merioneth|year=1873|page=29}}
• Lord Lieutenant of Montgomeryshire – Edward Clive, 1st Earl of Powis{{cite web|author=R. G. Thorne|url=http://www.historyofparliamentonline.org/volume/1790-1820/member/clive-edward-1754-1839|title=Clive, Edward, 2nd Baron Clive (1754-1839), of Walcot, Salop|website=The History of Parliament: the House of Commons 1790-1820|date=1986|access-date=13 November 2021}}
• Lord Lieutenant of Pembrokeshire – Richard Philipps, 1st Baron Milford{{cite DWB|id=s-PHIL-PIC-1491|title=Philipps family, of Picton|author=Bertie George Charles|date=1959|access-date=19 October 2021}}
• Lord Lieutenant of Radnorshire – George Rodney, 3rd Baron Rodney{{cite book|author=Jonathan Williams|title=The History of Radnorshire|publisher=R. Mason|year=1859|page=115}}{{cite book|author=William Stockdale|title=Stockdale's Peerage of the United Kingdom|year=1833|page=86}}

• Bishop of Bangor – Henry Majendie{{cite book | last = Fryde | first = E. B. | title = Handbook of British chronology | publisher = New York Cambridge University Press | location = Cambridge England | year = 1996 | isbn = 9780521563505 | page=292}}{{cite book|author=Thomas Duffus Hardy|title=Fasti Ecclesiae Anglicanae: Or A Calendar of the Principal Ecclesiastical Dignitaries in England and Wales...|publisher=University Press|year=1854|page=305}}
• Bishop of Llandaff – Richard Watson (until 4 July){{cite book|author=John Henry James|title=A History and Survey of the Cathedral Church of SS. Peter, Paul, Dubritius, Teilo, and Oudoceus, Llandaff|publisher=Western Mail|year=1898|page=16}} Herbert Marsh (from 25 August){{cite DNB|wstitle= Marsh, Herbert |volume= 36 |last= Venables |first= Edmund |author-link= Edmund Venables |pages= 211-215 |year= |short=1}}
• Bishop of St Asaph – John Luxmoore{{cite book|title=The Church of the people and free church penny magazine|year=1859|page=179}}{{cite book|title=The Apostolical Succession in the Church of England|publisher=James Parkes and Company|year=1866|page=15}}
• Bishop of St Davids – Thomas Burgess{{cite book|author=Thomas Duffus Hardy|title=Fasti Ecclesiae Anglicanae: Or A Calendar of the Principal Ecclesiastical Dignitaries in England and Wales...|publisher=University Press|year=1854|page=307}}{{cite book|title=The Monthly Review Or Literary Journal Enlarged|publisher=Porter|year=1780|page=95}}{{cite book|title=The Later Correspondence of George III, Volume 3|author=George III (King of Great Britain)|publisher=University Press|year=1967|page=434}}{{cite web |title=Records of Past Fellows: Burgess, Thomas |url=https://catalogues.royalsociety.org/CalmView/Record.aspx?src=CalmView.Persons&id=NA3174&pos=1 |website=The Royal Society |access-date=30 October 2020}}

• 10 February - Pembroke Dock's first Royal Navy ships are launched: HMS Ariadne and HMS Valorous.{{cite book|author=Alan Phillips|title=Defending Wales: The Coast and Sea Lanes in Wartime|url=https://books.google.com/books?id=u1-oAwAAQBAJ&pg=PT11|date=15 May 2010|publisher=Amberley Publishing Limited|isbn=978-1-4456-2032-9|pages=11}}
• 7 May - Hay Railway opens throughout.{{cite book|author=Ernest Frank Carter|title=Britain's Railway Liveries: Colours, Crests and Linings, 1825-1948|url=https://books.google.com/books?id=jvgHAAAAMAAJ|year=1952|publisher=Burke}}
• 24 July - Old Wye Bridge, Chepstow (rebuilt in cast iron), is opened across the River Wye.{{cite book|author=Rough Guides|title=The Rough Guide to Wales|url=https://books.google.com/books?id=eNZtBgAAQBAJ&pg=PT104|date=2 March 2015|publisher=Apa Publications|isbn=978-0-241-20625-6|pages=104}}
• 9 October - Fanny Imlay, half-sister of Mary Wollstonecraft Godwin, takes a room at the Mackworth Arms in Swansea, and instructs the maid not to disturb her. The following day she is found dead, having taken a fatal dose of laudanum.{{cite journal|last=Pollin|first=B. R.|title=Fanny Godwin's Suicide Re-examined|journal=Études Anglaises|volume=18|issue=3|year=1965|pages=258–68}}
• Nantyglo Round Towers built.{{cite web|first=Jeffrey L.|last=Thomas|title=Nantyglo Round Towers|url=http://www.thomasgenweb.com/nantyglo_round_towers.html|year=2004|access-date=2014-07-09}}
• Taliesin Williams, son of Iolo Morganwg, opens a school at Merthyr Tydfil.

• Ann Hatton - Chronicles of an Illustrious House
• Samuel Johnson - A Diary of a Journey Into North Wales, in the Year 1774

• Jane Ellis - Cerddi (first published Welsh language book by a woman){{cite book|author=Jane Ellis|editor=Rhiannon Ifans|title=Cyfres Clasuron Honno: Cerddi Jane Ellis.|publisher=Honno Welsh Women's Press|date=2010|language=cy|isbn=9781906784188}}
• Joseph Harris (Gomer) - Traethawd ar Briodol Dduwdod ein Harglwydd Iesu Grist

• John Ellis - Mawl yr Arglwydd (collection of hymns){{cite book|author=Phyllis Kinney|title=Welsh Traditional Music|url=https://books.google.com/books?id=SUyuBwAAQBAJ&pg=PA174|date=15 April 2011|publisher=University of Wales Press|isbn=978-0-7083-2358-8|pages=174}}

• 11 January - Henry Robertson, Scots engineer responsible for building the North Wales Mineral Railway (d. 1888)
• 7 March - Huw Derfel Hughes, poet and historian (d. 1890)
• 3 June - John Ormsby-Gore, 1st Baron Harlech, politician (d. 1876){{cite book|editor=Charles Mosley|title=Burke's Peerage, Baronetage & Knightage, 107th edition|volume=2|page=1792|publisher=Burke's Peerage (Genealogical Books) Ltd|year=2003}}
• 11 June - Thomas William Davids, ecclesiastical historian (d. 1884)
• 16 August - Charles John Vaughan, dean of Llandaff and co-founder of University of Wales, Cardiff{{ODNBweb|id=28124|title=Vaughan, Charles John|first=John|last=Roach}}
• date unknown
• Edward Edwards (Pencerdd Ceredigion), musician (d. 1897)
• Edward Meredith Price, composer (d. 1898){{cite book|author1=Maggie Humphreys|author2=Robert Evans|title=Dictionary of Composers for the Church in Great Britain and Ireland|url=https://books.google.com/books?id=WSLUAwAAQBAJ&pg=PA270|date=1 January 1997|publisher=A&C Black|isbn=978-0-7201-2330-2|pages=270}}

• 23 April - Thomas Johnes, landowner and politician, 67{{cite book|author1=Lewis Namier|author2=John Brooke|title=The House of Commons 1754-1790|url=https://books.google.com/books?id=Taw7DVGrbRcC&pg=RA1-PA683|year=1985|publisher=Boydell & Brewer|isbn=978-0-436-30420-0|pages=683}}
• 18 June - Thomas Henry, apothecary, 81
• 29 June - David Williams, Enlightenment philosopher, 78{{cite DWB||id=s-WILL-DAV-1738|title=Williams, David (1738-1816), littérateur and political pamphleteer|author=David Williams|author-link=David Williams (historian)|publisher=National Library of Wales|access-date=23 January 2020}}
• 4 July - Richard Watson, Bishop of Llandaff, 78{{acad|id=WT754R|name=Watson, Richard}}
• 17 July - John Lewis, missionary, about 24 (fever){{cite DWB|id=s-LEWI-JOH-1792|title=Davies, David (1792?-1816), Wesleyan missionary|author=Evan Lewis Evans|publisher=National Library of Wales|access-date=23 January 2020}}
• 10 October - Fanny Imlay, half-sister of Mary Shelley, 22 (committed suicide at the Mackworth Arms in Swansea){{cite book|author=John Cordy Jeaffreson|title=The Real Shelley|url=https://books.google.com/books?id=ldlvDwAAQBAJ&pg=PA271|date=20 September 2018|publisher=BoD – Books on Demand|isbn=978-3-7340-1053-8|pages=271}}
• date unknown
• Benjamin Davies, first Baptist minister at Haverfordwest (age unknown){{cite DWB|id=s-DAVI-DAV-1800|title=Davies, David (1800-1856), Baptist minister and college tutor|author=Robert Thomas Jenkins|publisher=National Library of Wales|access-date=23 January 2020}}
• David Jones, barrister ("the Welsh Freeholder"), c.51{{Cite DNB|wstitle=Jones, David (1765-1816)}}

• 1816 in Ireland

{{Reflist}}

Wales

Category:1816 in Europe

Category:1810s in Wales