1620 in Ireland
Events from the year 1620 in Ireland.
Incumbent
Events
- County Longford is planted by English and Scottish landowners, with much of the O'Farrell lands being confiscated and granted to new owners.
- Bangor, County Down, is granted the status of a port by King James I of England.
Honours
- 13 October – the Blundell Baronetcy is created in the Baronetage of Ireland in favour of Francis Blundell, Vice-Treasurer and Receiver-General of Ireland.
- 10 November – the Parsons Baronetcy, of Bellamont in the County of Dublin, is created in the Baronetage of Ireland in favour of William Parsons, Surveyor General of Ireland.
- 12 December – the title of Earl of Antrim is created in the Peerage of Ireland in favour of Randal MacDonnell, Viscount Dunluce.
- The titles of Earl of Cork and Viscount of Dungarvan are created in the Peerage of Ireland in favour of Richard Boyle, Lord Boyle.
- The title of Viscount Grandison is created in the Peerage of Ireland in favour of Oliver St John, Lord Deputy of Ireland.
Births
- Peter Talbot, Archbishop of Dublin (Roman Catholic)
- Approximate date – Redmond O'Hanlon, outlaw