1830 in Wales

Incumbents

• Prince of Wales - vacant
• Princess of Wales - vacant

  Events

• February 23 - William Carey becomes Bishop of St Asaph.
• April 23 - John Montgomery Traherne marries Charlotte Louisa Talbot, daughter of Thomas Mansel Talbot of Margam.
• The Penydarren works at Merthyr Tydfil produce the rails for the world's first steam railway.
• The Plymouth ironworks produces over 12,000 tons of bar-iron, compared with 7,941 tons ten years earlier.
• Sir Thomas Frankland Lewis is appointed Treasurer of the Navy by the Duke of Wellington.

  Arts and literature

New books

• Ellis Evans - Anogaeth i Athrawon ac Athrawesau ein Hysgolion Sabothol
• Felicia Hemans - Songs of the Affections
• Benjamin Jones - Athrawiaeth Bedydd
• Sir Samuel Rush Meyrick - Engraved Illustrations of Antient Arms and Armour, from the Collection at Goodrich Court

  Music

• Thomas Griffiths - Casgliad o Hymnau

  Births

• January 23 - Thomas Lloyd-Mostyn, politician
• April 22 - Sarah Emily Davies, educator
• May - Richard Davies, poet and critic
• May 25 - Robert Williams, poet

  Deaths

• 12 January - Owen Davies, Wesleyan Methodist leader
• 26 June - King George IV of the United Kingdom, formerly the second longest-serving Prince of Wales
• 9 July - Henry William Majendie, Bishop of Bangor
• 18 November - John Howell, poet