1867 in Wales

Centuries:	17th; 18th; 19th; 20th; 21st;
Decades:	1840s; 1850s; 1860s; 1870s; 1880s;
See also:	List of years in Wales; 1867 in The United Kingdom Ireland Scotland

This article is about the particular significance of the year 1867 to Wales and its people.

Incumbents

3 June^[1]
- Barmouth Bridge across the Mawddach estuary is completed, linking Barmouth to the rail network for the first time.
- Amlwch is linked to the rail network for the first time.
2 September — The Carnarvonshire Railway opens throughout, connecting Carnarvon and Portmadoc.^[1]
27 October — A sailing ship, the Earl of Chester, is wrecked off Rhosneigr, Anglesey, with the loss of 14 lives.
8 November — 178 miners are killed in an accident at Ferndale Colliery, Rhondda.
John Graham Chambers revises the Marquess of Queensberry rules for boxing.
Celtic Congress held at Saint-Brieuc in Brittany.
The Bronze Age cairns at Llanmadoc Hill are excavated and finds recorded.
Rhyl pier is built, at a cost of £23,000.

At the National Eisteddfod of Wales held at Carmarthen, a crown is presented for the first time.

10 March
- Sir William James Thomas, Baronet, philanthropist (d. 1945)
- William Llewelyn Williams, politician (d. 1922)
2 May — Eliseus Williams (Eifion Wyn), poet (d. 1926)
13 May — Frank Brangwyn, artist (d. 1956)
15 May — Sir Henry Stuart Jones, academic (d. 1939)
21 May — John Thomas Job, poet (d. 1938)
26 May — Mary of Teck, later Princess of Wales 1901–1910 (d. 1953)
29 September — John Richard Williams (J.R. Tryfanwy), poet (d. 1924)
6 October — Rosser Evans, Wales international rugby player
12 October — Lyn Harding, actor (d. 1952)
2 November — Owen Glynne Jones, mountaineer (d. 1899)
28 November — James Richard Atkin, judge (born in Australia) (d. 1944)
18 December — David Watts Morgan, Member of Parliament for Rhondda East (d. 1933)
date unknown — Fred Hutchinson, rugby player (d. 1941)