1850 in Wales

Centuries:	17th; 18th; 19th; 20th; 21st;
Decades:	1830s; 1840s; 1850s; 1860s; 1870s;
See also:	List of years in Wales; Timeline of Welsh history 1850 in The United Kingdom Scotland Elsewhere

This article is about the particular significance of the year 1850 to Wales and its people.

Incumbents

5 March — Opening of the Britannia Bridge.
16 June — Opening of the South Wales Railway between Chepstow and Swansea.
November — Launch of the periodical Y Drych.
14 December — 13 men are killed in a mining accident at New Duffryn Colliery, Mountain Ash.
G. T. Clark marries Ann Price Lewis, a descendant of one of the original partners in the Dowlais Ironworks.
The Llanelli Board of Health is founded, with William Chambers as its first chairman.
The Merthyr Board of Health is founded, with John Josiah Guest as its first chairman.

Thomas Edwards (Caerfallwch) — Geirlyfr Saesoneg a Chymraeg, An English and Welsh Dictionary
Elijah Waring — Recollections and Anecdotes of Edward Williams
Morris Williams (Nicander) — Y Psalmwyr

11 April
- David Hughes, clergyman and writer, 64?
- Edward Hughes (Y Dryw), poet, 77
18 April — John Richards, Welsh-born US politician, 85
19 April — Sir John Edwards of Garth, politician, 80
11 July — Robert Williams (Robert ap Gwilym Ddu), poet and hymn-writer, 83
28 July — David Lewis, Carmarthenshire priest and writer, 90?
2 September — Charles Watkin Williams-Wynn, politician, 74
19 December — George Williams, politician, 85