The Peerage of Ireland is the term used for those peers created by British monarchs in their capacity as Lord or King of Ireland. This practice ended with the creation of the Irish Free State in 1922. Before 1801, Irish Peers had the right to sit in the Irish House of Lords, but after the Union in 1801, Irish peers elected just 28 representative peers to the House of Lords (see List of Irish representative peers).

Irish Peerages continued to be created for some time after 1801 as a way of creating peerages which did not grant a seat in the House of Lords, although the treaty of Union placed restrictions on them: three had to go extinct before one could be granted, at least until there were only 100 Irish peerages. The last to be granted was for Lord Curzon in 1898.

The ranks of the Irish peerage are Duke, Marquess, Earl, Viscount and Baron.

In the following table of the Peerage of Ireland as it currently stands, each peer's highest titles in each of the other Peerages (if any) are also listed.

The modern state of Ireland does not confer or formally recognise peerages, except by courtesy. A peer may however use their titular name in place of their surname. Through its House of Lords in Westminster, the British Crown continues to exercise its prerogatives to determine the succession of peers in the Peerage of Ireland, including those whose titles derive from territorial denominations located in the Republic of Ireland.

Dukes in the Peerage of Ireland

Title	Creation	Other titles
The Duke of Leinster	1766	Viscount Leinster in the Peerage of Great Britain Lord Kildare in the Peerage of the United Kingdom
The Duke of Abercorn	1868	Earl of Abercorn in the Peerage of Scotland Marquess of Abercorn in the Peerage of Great Britain

Marquesses in the Peerage of Ireland

Title	Creation	Other titles
The Marquess of Waterford	1789	Lord Tyrone in the Peerage of Great Britain
The Marquess of Downshire	1789	Earl of Hillsborough in the Peerage of Great Britain
The Marquess of Donegall	1791	Lord Fisherwick in the Peerage of Great Britain Lord Templemore in the Peerage of the UK
The Marquess of Headfort	1800	Lord Kenlis in the Peerage of the UK
The Marquess of Sligo	1800	Lord Monteagle in the Peerage of the UK
The Marquess of Ely	1801	Lord Loftus in the Peerage of the UK
The Marquess Conyngham	1816	Lord Minster in the Peerage of the UK
The Marquess of Londonderry	1816	Earl Vane in the Peerage of the UK

Earls in the Peerage of Ireland

Title	Creation	Other titles; Notes
The Earl of Waterford	1446	Earl of Shrewsbury in the Peerage of England Earl Talbot in the Peerage of Great Britain
The Earl of Cork and Orrery	1620; 1660	Lord Boyle in the Peerage of Great Britain
The Earl of Westmeath	1621
The Earl of Desmond	1622	Earl of Denbigh in the Peerage of England
The Earl of Meath	1627	Lord Chaworth in the Peerage of the UK
The Earl of Cavan	1647
The Earl of Drogheda	1661	Lord Moore in the Peerage of the UK
The Earl of Granard	1684	Lord Granard in the Peerage of the UK
The Earl of Kerry and Shelburne	1722; 1753	Marquess of Lansdowne in the Peerage of Great Britain
The Earl of Darnley	1725	Lord Clifton in the Peerage of England
The Earl of Egmont	1733	Lord Lovel and Holland in the Peerage of Great Britain Lord Arden in the Peerage of the UK
The Earl of Bessborough	1739	Lord Ponsonby in the Peerage of Great Britain Lord Duncannon in the Peerage of the UK
The Earl of Carrick	1748	Lord Butler in the Peerage of the UK
The Earl of Shannon	1756	Lord Carleton in the Peerage of Great Britain
The Earl of Mornington	1760	Duke of Wellington in the Peerage of the UK
The Earl of Arran	1762	Lord Sudley in the Peerage of the UK
The Earl of Courtown	1762	Lord Saltersford in the Peerage of Great Britain
The Earl of Mexborough	1766
The Earl Winterton	1766
The Earl of Kingston	1768
The Earl of Roden	1771
The Earl of Lisburne	1776
The Earl of Clanwilliam	1776	Lord Clanwilliam in the Peerage of the UK
The Earl of Antrim	1785
The Earl of Longford	1785	Lord Silchester and Pakenham in the Peerage of the UK
The Earl of Portarlington	1785
The Earl of Mayo	1785
The Earl Annesley	1789
The Earl of Enniskillen	1789	Lord Grinstead in the Peerage of the UK
The Earl Erne	1789	Lord Fermanagh in the Peerage of the UK
The Earl of Lucan	1795	Lord Bingham in the Peerage of the UK
The Earl Belmore	1797
The Earl Castle Stewart	1800
The Earl of Donoughmore	1800	Viscount Hutchinson in the Peerage of the UK
The Earl of Caledon	1800
The Earl of Limerick	1803	Lord Foxford in the Peerage of the UK
The Earl of Clancarty	1803	Viscount Clancarty in the Peerage of the UK
The Earl of Gosford	1806	Lord Worlingham and Acheson in the Peerage of the UK
The Earl of Rosse	1806
The Earl of Normanton	1806	Lord Mendip in the Peerage of Great Britain Lord Somerton in the Peerage of the UK
The Earl of Kilmorey	1822
The Earl of Dunraven and Mount-Earl	1822
The Earl of Listowel	1822	Lord Hare in the Peerage of the UK
The Earl of Norbury	1827
The Earl of Ranfurly	1831	Lord Ranfurly in the Peerage of the UK

Viscounts in the Peerage of Ireland

Title	Creation	Other titles
The Viscount Gormanston	1478	Lord Gormanston in the Peerage of the UK
The Viscount Mountgarret	1550	Lord Mountgarret in the Peerage of the UK
The Viscount Valentia	1622
The Viscount Dillon	1622
The Viscount Lumley	1628	Earl of Scarbrough in the Peerage of England
The Viscount Massereene and Ferrard	1660; 1797	Lord Oriel in the Peerage of the UK
The Viscount Carra	1660
The Viscount Cholmondeley	1661	Earl of Cholmondeley in the Peerage of England Lord Newburgh in the Peerage of Great Britain Marquess of Cholmondeley in the Peerage of the UK
The Viscount Charlemont	1665
The Viscount Downe	1681	Lord Dawnay in the Peerage of the UK
The Viscount Molesworth	1716
The Viscount Chetwynd	1717
The Viscount Midleton	1717	Lord Brodrick in the Peerage of Great Britain
The Viscount Boyne	1717	Lord Brancepeth in the Peerage of the UK
The Viscount Grimston	1719	Lord Forrester in the Peerage of Scotland Lord Verulam in the Peerage of Great Britain Earl of Verulam in the Peerage of the UK
The Viscount Gage	1720	Lord Gage in the Peerage of Great Britain
The Viscount Galway	1727
The Viscount Powerscourt	1743	Lord Powerscourt in the Peerage of the UK
The Viscount Ashbrook	1751
The Viscount Southwell	1776
The Viscount de Vesci	1776
The Viscount Lifford	1781
The Viscount Bangor	1781
The Viscount Doneraile	1785
The Viscount Harberton	1791
The Viscount Hawarden	1793
The Viscount Monck	1801	Lord Monck in the Peerage of the UK
The Viscount Gort	1816

Barons in the Peerage of Ireland

Note that in Ireland, barony may also refer to an obsolete political subdivision of a county. There is no connection between such a barony and the noble title of baron.

Title	Creation	Other titles
The Lord Kingsale	1397
The Lord Dunsany	1439
The Lord Trimlestown	1461
The Lord Dunboyne	1541
The Lord Louth	1541
The Lord Inchiquin	1543
The Lord Digby	1620	Lord Digby in the Peerage of Great Britain
The Lord Conway and Killultagh	1712	Lord Conway in the Peerage of England Marquess of Hertford in the Peerage of Great Britain
The Lord Carbery	1715
The Lord Aylmer	1718
The Lord Farnham	1756
The Lord Lisle	1758
The Lord Clive	1762	Lord Clive in the Peerage of Great Britain Earl of Powis in the Peerage of the UK
The Lord Westcote	1776	Viscount Cobham in the Peerage of Great Britain
The Lord Macdonald	1776
The Lord Kensington	1776	Lord Kensington in the Peerage of the UK
The Lord Newborough	1776
The Lord Massy	1776
The Lord Muskerry	1781
The Lord Hood	1782	Viscount Hood in the Peerage of Great Britain
The Lord Sheffield	1783	Lord Stanley of Alderley and Eddisbury in the Peerage of the UK
The Lord Kilmaine	1789
The Lord Auckland	1789	Lord Auckland in the Peerage of Great Britain
The Lord Waterpark	1792
The Lord Bridport	1794	Viscount Bridport in the Peerage of the UK
The Lord Graves	1794
The Lord Huntingfield	1796
The Lord Carrington	1796	Lord Carrington in the Peerage of Great Britain Lord Carington of Upton in the Peerage of the UK for life
The Lord Rossmore	1796	Lord Rossmore in the Peerage of the UK
The Lord Hotham	1797
The Lord Crofton	1797
The Lord ffrench	1798
The Lord Henley	1799	Lord Northington in the Peerage of the UK
The Lord Langford	1800
The Lord Henniker	1800	Lord Hartismere in the Peerage of the UK
The Lord Dufferin and Claneboye	1800
The Lord Ventry	1800
The Lord Dunalley	1800
The Lord Clanmorris	1800
The Lord Ashtown	1800
The Lord Rendlesham	1806
The Lord Castlemaine	1812
The Lord Decies	1812
The Lord Garvagh	1818
The Lord Talbot of Malahide	1831
The Lord Carew	1834	Lord Carew in the Peerage of the UK
The Lord Oranmore and Browne	1836	Lord Mereworth in the Peerage of the UK
The Lord Bellew	1848
The Lord Rathdonnell	1868

References