:1705 in Wales

• Lord Lieutenant of North Wales (Lord Lieutenant of Anglesey, Caernarvonshire, Denbighshire, Flintshire, Merionethshire, Montgomeryshire) – Hugh Cholmondeley, 1st Earl of Cholmondeley{{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}}
• Lord Lieutenant of South Wales (Lord Lieutenant of Glamorgan, Brecknockshire, Cardiganshire, Carmarthenshire, Monmouthshire, Pembrokeshire, Radnorshire) – Thomas Herbert, 8th Earl of Pembroke{{cite book | last = Brown | first = Richard | title = Church and state in modern Britain, 1700-1850 | publisher = Routledge | location = London England New York, NY | year = 1991 | isbn = 9781134982707 | page=25}}
• Bishop of Bangor – John Evans{{cite book|author=Charles John Abbey|title=The English Church and Its Bishops 1700-1800|publisher=Longmans, Green|year=1887|pages=357–359}}
• Bishop of Llandaff – William Beaw
• Bishop of St Asaph – William Beveridge{{cite book|title=Dictionary of National Biography | url=https://books.google.com/books?id=QdceippDYIEC&q=William+beveridge&pg=PA447 | last=Grosart | first=Rev. A. B. | year=1885 | pages=447–448}}
• Bishop of St Davids – George Bull (consecrated 29 April){{DNB Cite|wstitle=Bull, George}}

• 29 April - George Bull is consecrated Bishop of St David's.{{cite book|author=John Lemprière|title=Universal Biography: Containing a Copious Account, Critical and Historical, of the Life and Character, Labors and Actions of Eminent Persons|url=https://archive.org/details/universalbiogra00lempgoog|year=1810|publisher=E. Sargeant|pages=247}}
• May–June - In the 1705 English general election, Richard Bulkeley, 4th Viscount Bulkeley, becomes MP for Anglesey, and Sir Thomas Powell, 1st Baronet, is MP for Monmouth Boroughs.{{cite book|author=Great Britain. Parliament. House of Commons|title=Parliamentary Papers|url=https://books.google.com/books?id=L1ETAAAAYAAJ&pg=PA8|year=1878|publisher=H.M. Stationery Office|pages=8}}
• date unknown - Edward Brereton is replaced as MP for Denbigh after having offended the local gentry.{{cite book|author1=David Hayton|author2=Eveline Cruickshanks|author3=Stuart Handley|title=The House of Commons, 1690-1715|url=https://books.google.com/books?id=XdphWLO1xLsC&pg=PA140|year=2002|publisher=Cambridge University Press|isbn=978-0-521-78318-7|pages=140}}

• Myles Davies - The Recantation of Mr. Pollett, a Roman priest
• Thomas Edwardes - Diocesan Episcopacy proved from Holy Scripture{{cite DWB|id=s-EDWA-THO-1652|title=Edwardes, Thomas (1652-1721), cleric and Coptic scholar|author=Dafydd Rhys ap Thomas|fewer-links=yes|access-date=20 June 2019}}
• Letters of Orinda to Poliarchus (the letters of Katherine Philips (posthumously published)
• Walter Morgan - The Parson's Jewel{{cite DWB|id=s-MORG-WAL-1695|title=Morgan, Walter (fl. 1695), author|author=Walter Thomas Morgan|fewer-links=yes|access-date=2 August 2019}}

• 6 May - William Morris, botanist, one of the Morris brothers of Anglesey (d. 1763)
• date unknown
• David Evans, Canon of St Asaph (d. 1788){{cite DWB|title= Evans, David (1705–1788), cleric, author, and musician |id=s-EVAN-DAV-1705|fewer-links=yes|year=1959|last=Griffith|first=Robert David|accessdate=1 November 2021}}
• Dafydd Nicolas, poet (d. 1774)

• August - William Richards, author of Wallography, or the Britton described{{cite DNB|wstitle=Richards, William (1643-1705)}}
• date unknown - Lionel Wafer, explorer, 65

• 1705 in Scotland

{{reflist}}

Category:1700s in Wales

Category:Years of the 18th century in Wales