1720 in Wales

This article is about the particular significance of the year 1720 to Wales and its people.

Incumbents

March - Sir William Morgan of Tredegar replaces John Morgan of Rhiwpera as Lord Lieutenant of Monmouthshire.
21 August - Elisha Beadles sends an account of the progress of the Quaker movement in South Wales to London for consideration by the "Meeting for Sufferings".
20 November - A violent storm damages the northwest tower of Llandaff Cathedral. The southwest tower, reported in 1719 to be in a state of collapse, is further damaged, and a programme of restoration work begins.
date unknown
Charles Hanbury Williams succeeds to the estate of his godfather, and takes the surname Williams.
Llandaff Cathedral is reported as being in a state of collapse.
The wrought-iron gates of St Giles' Church, Wrexham, made by the Davies brothers of Bersham, are erected.

Robert Roberts - A duo-glott-exposition of the Creed, the ten Commandments and the Lords Prayer, calculated for the borders of England and Wales, but particularly for the use of the parish of Chirk, whose inhabitants are partly Welsh and partly English, by R. R. A. M. Vicar of the said parish of Chirk