1778 in Wales

This article is about the particular significance of the year 1778 to Wales and its people.

Incumbents

9 September - Benjamin Millingchamp, is appointed chaplain on board the flagship of Admiral Sir Edward Hughes.
date unknown
A furnace is built at Sirhowy by Thomas Atkinson and William Barrow of London. This is the first stage of the Tredegar ironworks.
Elizabeth Baker leaves her job as secretary to Hugh Vaughan at Hengwrt to live in the adjoining house of Doluwcheogryd.
Claiming himself as a prophet, watchmaker James Birch founds his own religious sect, the "Birchites", in Pembrokeshire.

Thomas Jones - Traethiadau ar Gatecism Eglwys Loegr: gyda phregeth ar Gonffirmasiwn (translation)
Thomas Pennant - Tour in Wales
David William - Gorfoledd ym Mhebyll Seion
Nathaniel Williams - Dialogus

Blind harpist John Parry and his son David play Handel's choruses on two Welsh harps at the court of King George III of Great Britain.

28 July - Jacob Owen, architect, (died 1870)
21 August - Lewis Weston Dillwyn, porcelain manufacturer, naturalist and politician (died 1855)
September - William Howels, preacher (died 1832)
29 September - Benjamin Hall, industrialist and politician (died 1817)
20 November - Thomas Williams (Gwilym Morgannwg), poet (died 1835)
24 November - Salusbury Pryce Humphreys, admiral (died 1845)
date unknown - David Rowlands, naval surgeon (died 1846)