1821 in Wales

← 1820 1819 1818 1821 in Wales → 1822 1823 1824
Centuries:	17th 18th 19th 20th 21st
Decades:	1800s 1810s 1820s 1830s 1840s
See also:	List of years in Wales 1821 in The United Kingdom Ireland Scotland

This article is about the particular significance of the year 1821 to Wales and its people.

Incumbents

• Prince of Wales – vacant
• Princess of Wales – vacant

Events

• The new king visits Carmarthen; supporters of his estranged wife start a riot.
• 27 July – Sir Thomas Phillipps is created a baronet.
• November – The first edition of Y Dysgedydd appears.
• The first gas street lighting in Wales is installed at Swansea.
• William Madocks obtains an Act of Parliament allowing him to build a port, later known as Porthmadog.

Arts and literature

New books

• John Elias – Golygiad Ysgrythurol ar Gyfiawnhad Pechadur
• Evan Evans (Ieuan Glan Geirionydd) – Pedwar Cyflwr Dyn (translation of a work by Thomas Boston
• David Richards (Dafydd Ionawr) – Cywydd y Dilyw

Music

• Joseph Harris (Gomer) – Casgliad o Hymnau (collection of hymns)

Births

• 1 May – William Latham Bevan, church historian (d. 1908)
• 24 June – Guillermo Rawson, Argentinian politician (d. 1890)
• 6 July – Henry Hussey Vivian, 1st Baron Swansea (d. 1894)
• 16 July – John Jones (Mathetes), preacher and writer (d. 1878)
• 14 November – John Owen (Owain Alaw), musician (d. 1883)
• date unknown - William Davies, politician (d. 1895)

Deaths

• 16 February – Hugh Davies, botanist, 81
• 2 March - Benjamin Evans, Independent minister, 81
• 2 May – Hester Thrale, diarist, 80
• 21 May – John Jones (Jac Glan-y-gors), poet and satirist, 54
• 13 July – Sir Watkin Lewes, lord mayor of London, 81
• 7 August – Caroline of Brunswick, former Princess of Wales (1795–1820), 53
• 12 October - William Jones, evangelist, 65
• November – Richard Fenton, poet and author, 74