1925 in Wales

Incumbents

• Archbishop of Wales – Alfred George Edwards, Bishop of St Asaph
• Archdruid of the National Eisteddfod of Wales – Elfed

  Events

• 3 February - An estimated 100,000 people line the streets of Cardiff for the funeral of boxer 'peerless' Jim Driscoll.
• 13 July - The Ammanford anthracite strike begins.
• 5 August - Founding of Plaid Cymru by Lewis Valentine, H. R. Jones and others at Pwllheli.
• 2 November - After several days of heavy rain, the Llyn Eigiau dam at Dolgarrog on the River Conwy bursts, destroying the village of Porth-llwyd and killing 16 people.
• date unknown
• *Clough Williams-Ellis begins construction of Portmeirion.
• *US newspaper magnate William Randolph Hearst buys the medieval St Donat's Castle in the Vale of Glamorgan for $120,000.
• *R. Silyn Roberts founds the North Wales branch of the Workers Educational Association.

  Arts and literature

Awards

• National Eisteddfod of Wales
• National Eisteddfod of Wales: Chair - Dewi Morgan, "Cantre'r Gwaelod"
• National Eisteddfod of Wales: Crown - William Evans, "Bro Fy Mebyd"

  New books

English language

• Sir Joseph Alfred Bradney - A Survey of the General History of the Town of Newport and District
• Ifano Jones - Printing and Printers in Wales
• Hilda Vaughan - The Battle to the Weak
• Mortimer Wheeler - ''Prehistoric & Roman Wales''

  Welsh language

• David Rees Davies - Tusw o Flodau
• Edward Tegla Davies - Rhys Llwyd Y Lleuad
• Thomas Davies - Dinas Mawddwy a'i Hamgylchoedd
• Henry Lewis - Cywyddau Iolo Goch ac Eraill
• William David Owen - Madam Wen.
• Kate Roberts - O gors y bryniau
• R. Silyn Roberts - ''Bugail Geifr Lorraine''

  Music

• Mai Jones - "Blackbirds"

  Film

• 27 July - The first Welsh-made animation series, Jerry the Tyke, is shown through Pathé Pictorials in British cinemas.
• Gareth Hughes appears in The Midnight Girl.
• Ivor Novello appears in The Rat.

  Broadcasting

• 14 February - The BBC transmits readings from the poetry of T. Gwynn Jones.
• 22 February - A Welsh-language religious service is broadcast by the BBC.
• 28 February - Saunders Lewis insists on using the Welsh language for his contribution to the BBC series A Welsh Hour.
• 6 March - Readings from the poetry of R. Williams Parry are broadcast by the BBC.
• 3 April - The BBC's Liverpool transmitter broadcasts Noson Gymreig.
• 31 May - A bilingual service is broadcast from Cardiff Baptist Chapel.
• 2 October - The BBC broadcasts a talk on the Welsh language from Swansea.

  Sport

• Boxing
• *26 December - Tom Norris beats Dick Power at the Palace Theatre in Crumlin to take the Welsh heavyweight championship.
• Football:
• *28 February - England defeat Wales 2–1 at the Vetch Field, Swansea.
• *25 April - Cardiff City reach the FA Cup final, losing 1–0 to Sheffield United
• *31 October - Scotland defeat Wales 3–0 at Ninian Park.
• The Welsh Lawn Tennis Association is formed.
• Rugby union - Wales finish fourth in the Five Nations Championship with just one win, over France.

  Births

• 26 March - Emlyn Hooson, Baron Hooson, lawyer and Liberal politician
• 15 April - Geraint Howells, Liberal politician
• 2 May - Dai Davies, Wales and British Lions international rugby union player
• 1 June - Roy Clarke, footballer
• 10 June - Sir John Stradling Thomas, Conservative politician
• 19 July - Ivor Roberts, television announcer and actor
• 30 July - Don Hayward, Wales international rugby player
• 7 September - Laura Ashley, designer
• 10 October - Tecwyn Roberts, spaceflight engineer
• 3 November - Gordon Parry, Baron Parry, Welsh politician
• 10 November - Richard Burton, born Richard Jenkins, actor
• 24 November - Alun Owen, screenwriter
• 27 November - John Maddox, science writer
• 3 December - Roy John, Wales and British Lions international rugby union player
• 14 December - Ron Stitfall, footballer

  Deaths

• 21 January - John Puleston Jones, Methodist minister and author, 62
• 27 January - Francis Grenfell, 1st Baron Grenfell, 83
• 30 January - Jim Driscoll, boxer, 44
• 4 February - William Haggar, pioneer of the cinema industry, 73
• 18 February - Frank Mills, Wales international rugby player
• 8 June - Edward John Lewis, Wales international rugby union player, 65
• 9 August - J. Vyrnwy Morgan, minister and author, 65
• 26 September - William Bowen, rugby player, 63
• 19 October - David John Thomas, Wales international rugby union, 45
• 4 November - William David Owen, writer, 51
• 16 November - Towyn Jones, politician, 66
• 20 November - Alexandra of Denmark, the queen mother, former Princess of Wales, 80
• 19 December - Elizabeth Phillips Hughes, teacher, 74