1955 in Wales

• Archbishop of Wales – John Morgan, Bishop of Llandaff
• Archdruid of the National Eisteddfod of Wales – Dyfnallt

• 17 March – In the Wrexham by-election, brought about by the death of Labour Party Member of Parliament (MP) Robert Richards, who had held the seat since 1935, James Idwal Jones holds the seat for Labour with a majority of nearly 11,000 votes.{{cite web |url=http://www.geocities.com/by_elections/55a.html#wrexham |title=British parliamentary by-elections: Wrexham 1955 |access-date=2011-01-16 |publisher=Web Cite |url-status=dead |archive-url=https://web.archive.org/web/20090831055341/http://geocities.com/by_elections/55a.html#wrexham |archive-date=31 August 2009 }}
• 18 April–28 May – Charles Evans leads the mountaineering expedition that conquers Kanchenjunga.{{cite book|author=American Alpine Club|title=American Alpine Journal, 1979|url=https://books.google.com/books?id=vS-ZKYzsmxgC&pg=PA36|date=31 October 1997|publisher=The Mountaineers Books|isbn=978-0-930410-75-9|pages=36}}
• 6 August – The Usk Reservoir is completed, contributing to Swansea's water supply.{{cite book|editor=Cragg, Roger |title=Civil Engineering Heritage: Wales and West Central England |url=https://books.google.com/books?id=oTZZsUzmKrMC&pg=PA77 |year=1986 |publisher=Thomas Telford Publishing |location=London |isbn=0-7277-2576-9|page=78}}
• 31 October – The A48 road bridges over the River Neath at Briton Ferry (six years in the building) are officially opened by the Minister of Transport.
• 3 December – The Farmers' Union of Wales breaks away from the National Farmers Union.{{cite news|title=From humble beginnings... a history of the FUW|url=http://www.dailypost.co.uk/business/business-news/humble-beginnings-history-fuw-2902984|newspaper=North Wales Daily Post|date=2005-11-17|access-date=2015-11-05}}{{cite book|author1=Peter Self|author2=Herbert J. Storing|title=The State and the Farmer|url=https://archive.org/details/statefarmerbriti00self|url-access=registration|year=1963|publisher=University of California Press|pages=[https://archive.org/details/statefarmerbriti00self/page/57 57]|id=GGKEY:Z0JQUCL5Z4C}}
• 20 December – Cardiff becomes the official capital of Wales.{{cite book|author=David Williams|title=About Cardiff|url=https://books.google.com/books?id=Dpfspxo6OBMC&pg=PA21|year=2005|publisher=Graffeg|isbn=978-0-9544334-2-0|pages=21}}

• The Gold Medal for Architecture is introduced to the National Eisteddfod.{{cite book|title=Time & Tide|url=https://books.google.com/books?id=S7ISAAAAIAAJ|date=July 1955|publisher=Time and Tide Publishing Company}}
• Bertrand Russell retires to Plas Penrhyn, Penrhyndeudraeth.
• The Guild for the Promotion of Welsh Music is founded.{{cite book|author1=John Davies|author2=Nigel Jenkins|author3=Menna Baines|title=The Welsh Academy encyclopaedia of Wales|url=https://books.google.com/books?id=-ZEUAQAAIAAJ|year=2008|publisher=University of Wales Press|isbn=978-0-7083-1953-6}}

• National Eisteddfod of Wales (held in Pwllheli)
• National Eisteddfod of Wales: Chair – Gwilym Ceri Jones, "Gwrtheyrn"{{cite web|url=https://eisteddfod.wales/archive/eisteddfod-winners/winners-chair|title=Winners of the Chair|website=National Eisteddfod of Wales|access-date=7 November 2019}}
• National Eisteddfod of Wales: Crown – W. J. Gruffydd, "Ffenestri"{{cite web|url=https://eisteddfod.wales/archive/eisteddfod-winners/crown-winners|title=Winners of the Crown|website=National Eisteddfod of Wales|access-date=7 November 2019}}
• National Eisteddfod of Wales: Prose Medal – M. Selyf Roberts, Deg o'r Diwedd{{cite web|url=https://eisteddfod.wales/archive/eisteddfod-winners/winners-prose-medal|title=Winners of the Prose Medal|website=National Eisteddfod of Wales|access-date=7 November 2019}}
• Emyr Humphreys wins the Somerset Maugham Award for Hear and Forgive.

• Kingsley Amis – That Uncertain Feeling{{cite book|author=Nick Bentley|title=Radical Fictions: The English Novel in the 1950s|url=https://books.google.com/books?id=EBTr-UKA-SUC&pg=PA303|year=2007|publisher=Peter Lang|isbn=978-3-03910-934-0|pages=303}}
• (Edwin) Stuart Evans – Elegy for the Death of a Clown (poem)
• Elisabeth Inglis-Jones – The Story of Wales
• T. E. Lawrence – The Mint (posthumously published){{cite book|author=John Pateman|title=T.E. Lawrence in Lincolnshire|url=https://books.google.com/books?id=ePLQAwAAQBAJ&pg=PA55|year=2012|isbn=978-1-4717-6243-7|pages=55}}
• Dylan Thomas – A Child's Christmas in Wales (posthumously published){{Cite web|url=http://www.bbc.co.uk/wales/arts/sites/dylan-thomas/pages/childs-christmas-in-wales.shtml |title=Dylan Thomas: A Child's Christmas in Wales |date=6 November 2008| access-date=18 December 2010| publisher=BBC Wales}}
• R. S. Thomas – Song at the Year's Turning (poems){{cite book|author=W. Moelwyn Merchant|title=R.S. Thomas|url=https://books.google.com/books?id=xsVLhl5rJmsC&pg=PA27|year=1979|publisher=University of Arkansas Press|isbn=978-1-61075-333-3|pages=27}}
• Richard Vaughan – Son of Justin

• Gwilym Thomas Hughes – Ei Seren tan Gwmwl
• Robert Lloyd – Y Pethe{{cite book|author=Geraldine Lublin|title=Memoir and Identity in Welsh Patagonia: Voices from a Settler Community in Argentina|url=https://books.google.com/books?id=R-yVDwAAQBAJ&pg=PA223|date=15 May 2017|publisher=University of Wales Press|isbn=978-1-78316-968-9|pages=223}}
• Louie Myfanwy Thomas writing as Jane Ann Jones – Plant y Foty{{cite book|author=Meic Stephens|title=The new companion to the literature of Wales|url=https://books.google.com/books?id=WoMYAAAAIAAJ|date=23 September 1998|publisher=University of Wales Press|isbn=978-0-7083-1383-1|page=719}}

• Saunders Lewis – Siwan

• Grace Williams – Penillion

• Stanley Baker plays Richmond in Laurence Olivier's film of Richard III.
• The Constant Husband, starring Rex Harrison, with opening scenes filmed on location at New Quay and Aberaeron in 1954, includes some Welsh dialogue.

• The Welsh Home Service becomes available on VHF from Wenvoe

• January – First televised Welsh-language play, Cap Wil Tomos

• Cricket – Wilf Wooller becomes an England Test selector.
• Rugby Union
• 22 January – Ken Jones becomes Wales's most capped player (36) in a game against England.
• 12 March – Wales beat Ireland 21–3 at the National Stadium, Cardiff.
• 26 March – Wales win the Five Nations Championship for the fourth time this decade.
• BBC Wales Sports Personality of the Year – John Disley{{cite web |title=BBC Wales Sport Personality winners |url=https://www.bbc.com/sport/wales/20670643 |website=BBC Sport |access-date=29 July 2021}}

• 22 January – Clive Griffiths, footballer (died 2022)
• 30 January – Ian Edwards, footballer
• 23 February – Howard Jones, English-born musician of Welsh parentage{{cite web |url=http://www.allmusic.com/artist/howard-jones-mn0000228099/biography|title=Biography by Stephen Thomas Erlewine |publisher=AllMusic.com |access-date=14 May 2009}}
• 4 March – Joey Jones, footballer{{cite web|url=https://www.lfchistory.net/Players/Player/Profile/338|title=Liverpool career stats for Joey Jones|website=Liverpool FC|access-date=18 March 2020}}
• 17 March – John David Lewis, political scientist and historian
• 2 May – Peter Sayer, footballer
• 17 May – Nicola Heywood-Thomas, broadcaster and journalist (died 2023)
• 22 May – Maggie Jones, Baroness Jones of Whitchurch, politician
• 9 June – Alun Pugh, politician{{cite web|url=https://www.ukwhoswho.com/view/10.1093/ww/9780199540884.001.0001/ww-9780199540884-e-31590/version/12|title=Pugh, Alun John|website=Who's Who|access-date=18 March 2020}}
• 21 June (in Sunderland) – Janet Ryder, politician{{Cite web|url=http://news.bbc.co.uk/hi/english/static/uk/wales/13101.stm|title=People in the Assembly|date=1 September 1999|publisher=BBC News|access-date=26 October 2022}}
• 22 June – Green Gartside (Paul Julian Strohmeyer), musician
• 2 August – Alun Davies, biologist
• 3 August – Gordon Davies, footballer
• 4 August – Steve Jones, marathon runner
• 3 September – Eirian Williams, snooker referee
• 29 September – Gareth Davies, rugby player
• 12 October – Brian Flynn, footballer and manager{{cite web|url=https://www.porttalbotmagnet.com/brian-flynn/|title=Brian Flynn|website=Port Talbot Magnet|access-date=18 March 2020}}{{Dead link|date=February 2021 |bot=InternetArchiveBot |fix-attempted=yes }}
• 17 November – Amanda Levete, architect
• 7 December – Mihangel Morgan, author and academic{{cite book|title=International Who's who of Authors and Writers|url=https://books.google.com/books?id=7bYRAQAAMAAJ|year=2008|publisher=Europa Publications, Taylor & Francis Group|page=518}}
• date unknown
• Aled Gruffydd Jones, social historian, Librarian of National Library of Wales
• Martyn Jones, painter{{cite book|last=Moore|first=David|title=A Taste of the Avant-garde: 56 Group Wales|year=2012|publisher=Crooked Window|location=Brecon, Powys|isbn=978-0-9563602-1-2|page=74}}

• 5 January – Douglas Marsden-Jones, Wales and British Lions rugby player, 61
• 25 January – Robert Dewi Williams, teacher, clergyman and author, 84
• 26 January – Gwilym Davies, Baptist minister, 75
• 29 January – Sir Rhys Rhys-Williams, politician, 89
• 19 March – Tom Evans, Wales international rugby player, 72
• 2 April – Billy O'Neill, Welsh international rugby player, 76
• 27 April – Ambrose Bebb, author, 60{{cite web|url=https://biography.wales/article/s2-BEBB-AMB-1894|title=Bebb, William Ambrose|author=Thomas Parry|website=Dictionary of Welsh Biography|publisher=National Library of Wales|access-date=10 December 2019}}
• 19 May – Percy Bush, Wales international rugby union player, 75
• 21 June – Eric Evans, rugby union player and administrator, 61{{cite book |editor1-last=Owen |editor1-first=O.L. |title=Playfair Rugby Football Annual 1955–56|year=1956|publisher=Playfair Books Ltd |location=London}}
• 13 July – Ruth Ellis, murderer, 28 (hanged){{cite web|url=http://www.capitalpunishmentuk.org/pmortem.html|title=Autopsy Report of Ruth Ellis|access-date=17 March 2019}}
• 28 August – Sir Lewis Lougher, businessman and politician, 83{{cite news|title=Obituary: Sir L. Lougher, Cardiff Shipowner|newspaper=The Times|date=30 August 1955|page=11}}
• 28 September – Lionel Rees, airman, Victoria Cross recipient, 71
• 14 October – Harry Parr Davies, songwriter, 41{{cite magazine|magazine=Billboard|title=The Final Curtain|url=https://books.google.com/books?id=2SMEAAAAMBAJ&pg=PA48|date=22 October 1955|publisher=Nielsen Business Media, Inc.|page=48}}
• 15 October – Thomas Jones (T. J.), founder of Coleg Harlech, 85{{cite book|author=Honourable Society of Cymmrodorion (London, England)|title=Trafodion Anrhydeddus Gymdeithas Y Cymmrodorion|url=https://books.google.com/books?id=K_ohAQAAIAAJ|year=1992|publisher=The Society|page=196}}
• 30 October – Bert Dauncey, Wales international rugby player, 83
• 1 November – Ronw Moelwyn Hughes, politician, 58
• 15 December – V. E. Nash-Williams, archaeologist, 58{{cite web|url=https://biography.wales/article/s2-NASH-ERL-1897|title=NASH-WILLIAMS, VICTOR ERLE|author=George Counsell Boon|website=Dictionary of Welsh Biography|publisher=National Library of Wales|access-date=17 March 2019}}
• date unknown – Melbourne Johns, munitions worker and wartime secret agent, 55

• 1955 in Northern Ireland

{{reflist}}

Category:1955 in Europe

Category:1950s in Wales