1905 in Wales

This article is about the particular significance of the year 1905 to Wales and its people.

Incumbents

31 January – 1904–1905 Welsh Revival: Rev Peter Price writes to the Western Mail, criticising the "so-called" revival led by Evan Roberts.
10 March – 33 men are killed in a mining accident at Cambrian Colliery, Clydach Vale, Rhondda.
29 March – Evan Roberts embarks on his first and only mission outside Wales, spending a three-week period in Liverpool.
27 May – Thomas Price becomes Premier of South Australia.
30 June – Opening of the Prichard Jones Institute at Newborough, Anglesey.
11 July – National Colliery disaster at Wattstown in the Rhondda: an underground explosion kills 120 men, with just one survivor.
28 August – The Dyserth branch line is opened to passengers.
21 October - The centenary of the death of Horatio Nelson is commemorated in a ceremony at The Kymin. Participants include Lady Llangattock.
28 October - Edward VII grants city status to Cardiff, the only such grant of his reign.
10 December – David Lloyd George joins the new Liberal Cabinet of Sir Henry Campbell-Bannerman as President of the Board of Trade.
18 December – The earldom of Plymouth is revived in favour of Robert George Windsor-Clive, 14th Baron Windsor, who also becomes Viscount Windsor of St. Fagan's.
28 December – Godfrey Morgan is created Viscount Tredegar.
Sir John Williams purchases the Peniarth manuscripts at the instigation of John Gwenogvryn Evans.

24 January – Richard Lewis, Bishop of Llandaff, 83
7 March – Robert Isaac Jones, pharmacist, writer and printer
14 March – Henry Paget, 5th Marquess of Anglesey, eccentric, 29
25 April – David Watkin Jones, poet, 73
29 May – Robert Franklin John, Welsh-born farmer and political figure in British Columbia, 54
August/September – Peter Rees Jones, entrepreneur, 62
14 October – John Thomas, photographer, 67
15 October – Thomas Howells (Hywel Cynon), poet and musician, 66
19 October – Anne Ceridwen Rees, practising physician in the US, 31
23 October – William Phillips, botanist, 83
28 October – Barry Girling, Wales international rugby union player
10 November – Rowland Williams (Hwfa Môn), poet and archdruid, 82
19 November – Watkin Hezekiah Williams, schoolmaster and poet, 61
25 November – William Cadwaladr Davies, educationist, 56
8 December – Edward Davies, US-born minister, publisher of Y Cenhadwr, 78
9 December – Arthur Humphreys-Owen, barrister, landowner and politician, 69
14 December – Nathaniel Jones, minister and poet, 73
17 December – Robert Jones Derfel, poet and dramatist, 81