This page, one list of hereditary baronies, lists all baronies, extant, extinct, dormant, abeyant, or forfeit, in the Peerage of Ireland.
__TOC__
| Title | Date of Creation | Surname | Current Status | Notes | |
|---|---|---|---|---|---|
| Baron Athenry | 1172 | Bermingham | dormant 1799 | also Earl of Louth from 1759 to 1799, when this title became extinct[1] | |
| Baron Kingsale | 1223 | de Courcy | extant | ||
| - | Baron Kerry | 1223 | Fitzmaurice | extant | also Earl of Kerry from 1723 and Marquess of Lansdowne in Great Britain from 1818[2] |
| Baron Desmond | 1259 | FitzGerald | forfeit 1582 | also Earl of Desmond from 1329[3] | |
| Baron Barry | 1261 | Barry | extinct 1823 | also Viscount Buttevant from 1461 and Earl of Barrymore from 1628[4] | |
| Baron Dunboyne | 1324 | Butler, Clifford-Butler | extant | confirmed by letters patent in 1541 | |
| Baron Gormanston | c. 1370 | Preston | extant | also Viscount Gormanston from 1478 and Baron Gormanston in the United Kingdom from 1868 | |
| Baron Slane | c. 1370 | Fleming | forfeit 1691 | ||
| Baron Howth | 1430 | St Lawrence | extinct 1909 | also Viscount St Lawrence and Earl of Howth from 1767, also Baron Howth in the United Kingdom from 1881 | |
| Baron of Dunsany | 1439? | Plunkett | extant | ||
| Baron Killeen | 1449 | Plunkett | extinct 1984 | also Earl of Fingall from 1628, also Baron Fingall in the United Kingdom from 1831 | |
| Baron Portlester | 1462 | Fitzeustace | extinct 1496 | [5] | |
| Baron Trimlestown | 1462 | Barnewall | dormant 2024 | ||
| Baron Ratoath | 1468 | Bold | extinct 1479 | ||
| Baron Loundres | 1478 | Preston | extant | subsidiary title of the Viscount Gormanston, also Baron Gormanston in the United Kingdom from 1868 | |
| Baron Delvin | 1486 | Nugent | extant | also Earl of Westmeath from 1621 and Marquess of Westmeath in the United Kingdom from 1822 to 1871 | |
| Baron Kilcullen | 1535 | Eustace | forfeit 1585 | subsidiary title of the Viscount Baltinglass | |
| Baron Power | 1535 | Power | forfeit 1704 | subsidiary title of the Earl of Tyrone | |
| Baron Odorney | 1537 | Fitzmaurice | extinct 1541 | subsidiary title of the Viscount Kilmaule, also Baron Kerry, a title now held by the Marquess of Lansdowne | |
| Baron Offaly | 1538 | O Conor Faly | 1552 | ||
| Baron Carbery | 1541 | de Bermingham | extinct c. 1560 | ||
| Baron Louth | 1541 | Plunkett | extant | ||
| Baron Upper Ossory | 1541 | Fitzpatrick | forfeit 1691 | ||
| Baron Dungannon | 1542 | O'Neill | extinct after 1542 | ||
| Baron Dunkellin | 1543 | de Burgh | extinct 1916 | subsidiary title of the Earl of Clanricarde, also Baron Somerhill and Viscount Tunbridge in England from 1624 and Baron Imanney, Viscount Galway and Earl of St Albans in England from 1628, also Marquess of Clanricarde in Ireland from 1646 to 1657, from 1789 to 1797 and from 1825, also Earl of Clanricarde in Ireland from 1800 (a title which is extant and now held by the Marquess of Sligo), also Baron Somerhill in the United Kingdom from 1826 | |
| Baron Ibrackan | 1543 | O'Brien | forfeit 1741 | also Earl of Thomond from 1551, also Viscount Tadcaster in Great Britain from 1714 | |
| Baron Inchiquin | 1543 | O'Brien | extant | also Earl of Inchiquin from 1654 to 1855 and Marquess of Thomond from 1800 to 1855 | |
| Baron of Ballyane | 1554 | Kavanagh | extinct 1555 | Life peerage | |
| Baron Valentia | 1556 | McCarthy | resigned 1597 | subsidiary title of the Earl of Clancare | |
| Baron of Ballyane | 1558 | Kavanagh | extinct after 1558 | Life peerage | |
| Baron Dromana | 1569 | Fitzgerald | extinct 1572 | subsidiary title of the Viscount Decies | |
| Baron Clogher | 1578 | O'Neill | extinct 1595 | subsidiary title of the Earl of Clanconnel | |
| Baron of Ardenerie | 1580 | Bourke | dormant 1591 | ||
| Baron Bourke of Castleconnell | 1580 | Bourke | forfeit 1691 | ||
| Baron Cahir | 1583 | Butler | extinct 1858 | also Viscount Cahir and Earl of Glengall from 1816 | |
| Baron Leitrim | 1583 | de Burgh (or Burke) | Forfeit 1600 | ||
| Baron Dungannon | 1587 | O'Neill | forfeit 1612 | ||
| Baron Inchiquin | 1600 | Fitzgerald | extinct 1601 | subsidiary title of the Earl of Desmond | |
| Baron Chichester of Belfast | 1613 | Chichester | extinct 1625 | ||
| Baron Ardee | 1616 | Brabazon | extant | also Earl of Meath from 1627 and Baron Chaworth in the United Kingdom from 1831 | |
| Baron Audley of Hely | 1616 | Tuchet | extinct 1777 | subsidiary title of the Earl of Castlehaven, also Baron Audley (created 1312) and Baron Audley of Orier in England, the latter title which was forfeited in 1633 | |
| Baron Boyle of Youghal | 1616 | Boyle | extant | subsidiary title of the Earl of Cork; also Baron Bandon Bridge and Viscount Boyle of Kinalmeaky from 1643; also Baron Clifford of Lanesborough in England from 1644 to 1753; also Earl of Burlington in England from 1664 to 1753; also Baron Clifford in England from 1691 to 1753; also Baron Boyle of Broghill and Earl of Orrery in Ireland and Baron Boyle of Marston in Great Britain from 1753 | |
| Baron Moore | 1616 | Moore | extant | also Viscount Moore from 1621, Earl of Drogheda from 1661, Marquess of Drogheda from 1791 to 1892 and Baron Moore of Cobham in the United Kingdom from 1954 | |
| Baron Ridgeway of Gallen-Ridgeway | 1616 | Ridgeway | extinct 1714 | subsidiary title of the Earl of Londonderry | |
| Baron Hamilton of Strabane | 1617 | Hamilton | extant | also Earl of Abercorn in Scotland from c. 1680, Viscount Strabane in Ireland from 1701, Viscount Hamilton in Great Britain from 1786, Marquess of Abercorn in Great Britain from 1790, Marquess of Hamilton in the United Kingdom and Duke of Abercorn in Ireland from 1868 | |
| Baron Bourke of Brittas | 1618 | Bourke | forfeit 1691 | ||
| Baron Lambart of Cavan | 1618 | Lambart | extant | also Viscount Kilcoursie and Earl of Cavan from 1647 | |
| Baron Mountjoy | 1618 | Blount | extinct 1681 | also Baron Mountjoy from 1627 and Earl of Newport from 1628 in England | |
| Baron Balfour of Glenawley | 1619 | Balfour | extinct 1636 | ||
| Baron Dillon | 1619 | Dillon | dormant 1850 | subsidiary title of the Earl of Roscommon | |
| Baron Dunboyne | 1719 | Grimston | extant | subsidiary title of the Viscount Grimston; also Baron Verulam in Great Britain from 1790; also Viscount Grimston and Earl of Verulam in the United Kingdom from 1815; also Lord Forrester of Corstorphine in Scotland from 1808 | |
| Baron Dunmore | 1619 | Preston | extinct 1628 | subsidiary title of the Earl of Desmond, also Lord Dingwall in Scotland, which title is still extant | |
| Baron Offaly | 1620 | Fitzgerald | extant | also Earl of Kildare from 1658, Marquess of Kildare from 1761 and Duke of Leinster from 1766, Baron Kildare in the United Kingdom from 1870 | |
| Baron Caulfeild | 1620 | Caulfeild | extant | also Viscount Charlemont in Ireland from 1665; also Earl of Charlemont in Ireland from 1763 to 1892; also Baron Charlemont in the United Kingdom from 1837 to 1892 | |
| Baron Digby | 1620 | Digby | extant | also Baron Digby in Great Britain from 1765; also Viscount Coleshill and Earl Digby in Great Britain from 1790 to 1856 | |
| Baron FitzWilliam | 1620 | FitzWilliam, Wentworth-FitzWilliam | extinct 1979 | also Viscount Milton and Earl FitzWilliam from 1716, also Baron FitzWilliam of Milton in Great Britain from 1742, also Viscount Milton and Earl FitzWilliam in Great Britain from 1746 | |
| Baron Folliott | 1620 | Folliott | extinct 1716 | ||
| Baron Gorges of Dundalk | 1620 | Gorges | extinct 1712 | ||
| Baron Hervey | 1620 | Hervey | extinct 1642 | also Baron Hervey in England from 1628 | |
| Baron Maynard | 1620 | Maynard | extinct 1775 | also Viscount Maynard from 1766 (a title which became extinct in 1865), also Baron Maynard in England from 1628 to 1775 | |
| Baron Aungier | 1621 | Aungier | extinct 1706 | also Viscount Aungier from 1665 and Earl of Longford from 1677 | |
| Baron Blayney | 1621 | Blayney | extinct 1874 | ||
| Baron Boyle of Broghill | 1621 | Boyle | extant | subsidiary title of the Earl of Orrery; also Baron Boyle of Marston in Great Britain from 1711; also Baron Boyle of Youghal, Baron Bandon Bridge, Viscount Boyle of Kinalmeaky, Viscount Dungarvan and Earl of Cork in Ireland from 1753 | |
| Baron Castle Stuart | 1621 | Stewart, Stuart, Stuart-Richardson | extant | dormant from 1685 to 1774; also Viscount Castle Stuart from 1793 and Earl Castle Stewart from 1800 | |
| Baron Dockwra | 1621 | Dockwra | extinct 1647 | ||
| Baron Vaughan of Mullengar | 1621 | Vaughan | extinct 1713 | subsidiary title of the Earl of Carbery, also Baron Vaughan of Emlyn in England from 1643 | |
| Baron Esmonde | 1622 | Esmonde | extinct 1646 | ||
| Baron Feilding | 1622 | Feilding | extant | subsidiary title of the Earl of Desmond; also Earl of Denbigh in England from 1675 | |
| Baron Glean-O'Mallun | 1622 | O'Mallun | extinct after 1622 | ||
| Baron Baltimore | 1624 | Calvert | extinct 1771 | ||
| Baron Brereton | 1624 | Brereton | extinct 1722 | ||
| Baron Herbert of Castle Island | 1624 | Herbert | extinct 1791 | also Baron Herbert of Chirbury in England from 1629 | |
| Baron Chichester of Belfast | 1625 | Chichester | extant | subsidiary title of the Viscount Chichester of Carrickfergus, also Earl of Donegall from 1647, Baron Fisherwick in Great Britain from 1790 and Marquess of Donegall in Ireland from 1791 | |
| Baron Coleraine | 1625 | Hare | extinct 1749 | ||
| Baron Bantry | 1627 | Roper | extinct 1672 | subsidiary title of the Viscount Baltinglass | |
| Baron Saunderson | 1627 | Saunderson | extinct 1723 | subsidiary title of the Viscount Castleton, also Baron Saunderson from 1714, Viscount Carleton from 1716 and Earl of Castleton from 1720, the latter three titles which were all in the Peerage of Great Britain | |
| Baron Sherard | 1627 | Sherard | extinct 1931 | also Baron Harborough and Earl of Harborough in Great Britain from 1732 to 1859 | |
| Baron Ballymote | 1628 | Taaffe | suspended 1919 | subsidiary title of the Viscount Taaffe, also Earl of Carlingford from 1661 to 1738 | |
| Baron Bandon Bridge | 1628 | Boyle | extant | subsidiary title of the Viscount Boyle of Kinalmeaky; also Baron Boyle of Youghal, Viscount Dungarvan and Earl of Cork in Ireland from 1643; also Baron Boyle of Broghill and Earl of Orrery in Ireland from 1753; also Baron Boyle of Marston in Peerage of Great Britain from 1753 | |
| Baron Chaworth | 1628 | Chaworth | extinct 1693 | subsidiary title of the Viscount Chaworth | |
| Baron Dromore | 1628 | Scudamore | extinct 1716 | subsidiary title of the Viscount Scudamore | |
| Baron Jones of Navan | 1628 | Jones | extinct 1885 | subsidiary title of the Viscount Ranelagh, also Earl of Ranelagh from 1674 to 1712; Barony and Viscountcy dormant from 1712 to 1759 | |
| Baron Maguire | 1628 | Maguire | forfeit 1644 | ||
| Baron Mountnorris | 1628 | Annesley | extant | subsidiary title of the Viscount Valentia, also Baron Annesley and Earl of Anglesey in England from 1661 to 1761, also Earl of Mountnorris in Ireland from 1793 to 1844, also Baron Altham from 1737 to 1844 | |
| Baron Pope | 1628 | Pope | extinct 1668 | subsidiary title of the Earl of Downe | |
| Baron Wenman | 1628 | Wenman | extinct 1800 | subsidiary title of the Viscount Wenman | |
| Baron Fitzwilliam of Thorncastle | 1629 | FitzWilliam | extinct 1833 | subsidiary title of the Viscount FitzWilliam of Meryon, also Earl of Tyrconnel from 1663 to 1667 | |
| Baron Philippstown | 1631 | O'Dempsey | extinct 1691 | subsidiary title of the Viscount Clanmalier | |
| Baron Alington | 1642 | Alington | extinct 1723 | also Baron Alington in England from 1682 | |
| Baron Cullen | 1642 | Cokayne | extinct 1810 | subsidiary title of the Viscount Cullen | |
| Baron Tracy | 1643 | Tracy | extinct 1797 | subsidiary title of the Viscount Tracy | |
| Baron Bard of Dromboy | 1645 | Bard | extinct 1656 | subsidiary title of the Viscount Bellomont | |
| Baron Brouncker | 1645 | Brouncker | extinct 1688 | subsidiary title of the Viscount Brouncker | |
| Baron Hawley | 1646 | Hawley | extinct 1790 | ||
| Baron Turvey | 1646 | Barnewall | extinct 1834 | subsidiary title of the Viscount Barnewall | |
| Baron O'Brien | 1754 | O'Brien | extinct 1855 | subsidiary title of the Earl of Inchiquin, also Baron Inchiquin (which title is still extant), also Marquess of Thomond from 1800, also Baron Thomond from 1801 to 1808 and Baron Tadcaster from 1826 to 1846 in the United Kingdom | |
| Baron Boyle | 1660 | Boyle | extinct 1699 | subsidiary title of the Viscount Shannon | |
| Baron Coote of Coloony | 1660 | Coote | extinct 1800 | created Earl of Bellomont in 1689 (extinct 1766) and Earl of Bellamont in 1767 (extinct 1800). | |
| Baron Kingston | 1660 | King | extinct 1761 | ||
| Baron Loughneagh | 1660 | Clotworthy, Skeffington | extant | subsidiary title of the Viscount Massereene, also Earl of Massereene in Ireland from 1756 to 1816, also Viscount Ferrard and Baron Oriel in Ireland and Baron Oriel in the United Kingdom from 1843 | |
| Baron Barry of Santry | 1661 | Barry | extinct 1751 | ||
| Baron Palmer | 1661 | Palmer | extinct 1705 | subsidiary title of the Earl of Castlemaine | |
| Baron Butler of Cloughgrenan | 1662 | Butler | extinct 1686 | subsidiary title of the Earl of Arran, also Baron Butler of Weston in Ireland from 1673 | |
| Baron Moyarta | 1662 | O'Brien | forfeit 1691 | subsidiary title of the Viscount Clare | |
| Baron Trevor | 1662 | Trevor | extinct 1706 | subsidiary title of the Viscount Dungannon | |
| Baron Berkeley of Rathdowne | 1663 | Berkeley | extinct 1712 | subsidiary title of the Viscount Fitzhardinge, also Baron Botetourt of Langport and Earl of Falmouth in England from 1664 to 1665 | |
| Baron Boyle | 1673 | Boyle | extinct 1732 | subsidiary title of the Viscount Blessington | |
| Baron Butler of Weston | 1673 | Butler | extinct 1686 | subsidiary title of the Earl of Arran (1662 creation) | |
| Baron Clanehugh | 1675 | Forbes | extant | subsidiary title of the Viscount Granard, also Earl of Granard from 1684 and Baron Granard in the United Kingdom from 1806 | |
| Baron Cloney | 1675 | Ducie | extinct 1679 | subsidiary title of the Viscount Downe | |
| Baron Aghrim | 1676 | Butler | extinct 1677 | subsidiary title of the Earl of Gowran | |
| Baron Altham | 1681 | Annesley | extinct 1844 | also Earl of Anglesey in England from 1737 to 1761; created Earl of Mountnorris (1793) in Ireland | |
| Baron Oxmantown | 1681 | Parsons | extinct 1764 | subsidiary title of the Viscount Rosse, also Earl of Rosse from 1718 | |
| Baron Stewart of Ramalton | 1683 | Stewart | extinct 1769 | subsidiary title of the Viscount Mountjoy, also Earl of Blessington from 1745 | |
| Baron Rathfarnham | 1685 | Loftus | extinct 1691 | subsidiary title of the Viscount Loftus | |
| Baron Talbotstown | 1685 | Talbot | forfeit 1691 | subsidiary title of the Duke of Tyrconnel | |
| Baron Bellew of Duleek | 1686 | Bellew | extinct 1770 | ||
| Baron Tyaquin | 1687 | Bourke | extinct 1691 | subsidiary title of the Viscount Galway | |
| Baron Shelburne | 1688 | Petty | extinct 1696 | ||
| data-sort-value="Baron Shelburne" | Baroness Shelburne | 1688 | Petty | extinct 1708 | |
| Baron Jamestown | 1689 | Hewett | extinct 1689 | subsidiary title of the Viscount Hewett | |
| Baron Cutts of Gowran | 1690 | Cutts | extinct 1707 | ||
| Baron Tara | 1691 | Schomberg | extinct 1719 | subsidiary title of the Duke of Leinster, also Baron Teyes, Earl of Brentford and Duke of Schomberg in England from 1693 | |
| Baron Aghrim | 1692 | de Ginkell | extinct 1844 | subsidiary title of the Earl of Athlone | |
| Baron Coningsby | 1692 | Coningsby | extinct 1761 | also Baron Coningsby in Great Britain from 1715 to 1729, also Earl Coningsby in Great Britain from 1719, also Baron Coningsby of Hampton Court and Viscount Coningsby in Great Britain from 1729 | |
| Baron Portarlington | 1692 | de Ruvigny | extinct 1720 | Subsidiary title of the Viscount Galway. Created Earl of Galway in 1697. | |
| Baron Cloughrenan | 1693 | Butler | extinct 1758 | subsidiary title of the Earl of Arran, also Baron Butler, Viscount Thurles, Earl of Ossory, Earl of Ormonde, Marquess of Ormonde and Duke of Ormonde from 1745 | |
| Baron Fethard | 1695 | Vaughan | extant | subsidiary title of the Viscount Lisburne; created Earl of Lisburne in Ireland in 1776 | |
| Baron Shelburne | 1699 | Petty | extinct 1751 | subsidiary title of the Earl of Shelburne | |
| Baron Glenawley | 1701 | Howe | extinct 1814 | subsidiary title of the Viscount Howe, also Viscount Howe in Great Britain from 1782 to 1799, also Baron Howe and Earl Howe in Great Britain from 1788 to 1799; the title of Baron Howe is still extant and is now a subsidiary title of the Earl Howe (created in Peerage of the United Kingdom in 1821) | |
| Baron Mountcastle | 1701 | Hamilton | extant | subsidiary title of the Viscount Strabane, also Earl of Abercorn in Scotland, Viscount Hamilton in Great Britain from 1786, Marquess of Abercorn in Great Britain from 1790, Marquess of Hamilton in the United Kingdom and Duke of Abercorn in Ireland from 1868 | |
| Baron Pierrepont | 1702 | Pierrepont | extinct 1715 | also Baron Pierrepont in Great Britain from 1714 | |
| Baron Kilmayden | 1703 | St Leger | extinct 1767 | subsidiary title of the Viscount Doneraile | |
| Baron Verney | 1703 | Verney | extinct 1791 | subsidiary title of the Viscount Fermanagh, also Earl Verney from 1742 | |
| Baron Mount Cashell | 1706 | Davys | extinct 1736 | subsidiary title of the Viscount Mount Cashell | |
| Baron Tyrawley | 1706 | O'Hara | extinct 1773 | also Baron Kilmaine in Ireland from 1724 | |
| Baron Wandesford | 1706 | Wandesford | extinct 1784 | subsidiary title of the Viscount Castlecomer, also Earl Wandesford in Great Britain from 1758 | |
| Baron Conway of Killultagh | 1713 | Seymour-Conway | extant | also Baron Conway in the Peerage of England; created Earl of Hertford in 1750 and Marquess of Hertford in 1793 | |
| Baron Brodrick | 1715 | Brodrick | extant | subsidiary title of the Viscount Midleton; also Baron Brodrick in the Great Britain from 1796; also Viscount Dunsford and Earl of Midleton in the United Kingdom from 1920 to 1979 | |
| Baron Carbery | 1715 | Evans, Evans-Freke | extant | ||
| Baron Ferrard of Beaulieu | 1715 | Tichborne | extinct 1731 | ||
| Baron Gowran | 1715 | Fitzpatrick | extinct 1818 | also Earl of Upper Ossory from 1751, also Baron Upper Ossory in Great Britain from 1794 | |
| Baron Hamilton of Stackallan | 1715 | Hamilton | extant | subsidiary title of the Viscount Boyne; also Baron Brancepeth in the United Kingdom from 1866 | |
| Baron Moore | 1715 | Moore | extinct 1764 | created Earl of Charleville in 1758 | |
| Baron Newtown-Butler | 1715 | Butler | extinct 1998 | also Viscount Lanesborough from 1728 and Earl of Lanesborough from 1756 | |
| Baron Perceval | 1715 | Perceval | extinct 2011 | subsidiary title of the Earl of Egmont; also Baron Lovel and Holland in Peerage of Great Britain from 1762; also Baron Arden in the Peerage of the United Kingdom from 1841 | |
| Baron Ranelagh | 1715 | Cole | extinct 1754 | ||
| Baron Saint George | 1715 | Saint-George | extinct 1735 | ||
| Baron Trim | 1715 | Wharton | extinct 1728 | subsidiary title of the Marquess of Catherlough, also Baron Wharton in England (which title is still extant), also Viscount Winchendon and Earl of Wharton in England, also Earl of Rathfarnham from 1715, also Marquess of Wharton and Marquess of Malmesbury in Great Britain from 1715, also Duke of Wharton in Great Britain from 1718 | |
| data-sort-value="Baron Dundalk" | Baroness Dundalk | 1716 | von der Schulenburg | extinct 1743 | subsidiary title of the Duchess of Munster, also Duchess of Kendal in Great Britain from 1719 |
| Baron Newborough | 1716 | Cholmondeley | Extant | Subsidiary title of the Marquess of Cholmondeley | |
| Baron Philipstown | 1716 | Molesworth | Extant | Subsidiary title of the Viscount Molesworth | |
| Baron Allen | 1717 | Allen | extinct 1845 | subsidiary title of the Viscount Allen | |
| Baron Rathdown | 1717 | Chetwynd | extant | subsidiary title of the Viscount Chetwynd | |
| Baron Southwell | 1717 | Southwell | extant | also Viscount Southwell from 1776 | |
| Baron Hill of Kilwarlin | 1717 | Hill | extant | subsidiary title of the Viscount Hillsborough, also Earl of Hillsborough from 1751, Baron Harwich in Great Britain from 1756, Earl of Hillsborough in Great Britain from 1772 and Marquess of Downshire in Ireland from 1789 | |
| Baron Aylmer | 1718 | Aylmer, Whitworth-Aylmer | extant | ||
| Baron Charleville | 1718 | Brownlow | extinct 1754 | subsidiary title of the Viscount Tyrconnel | |
| Baron Loughuyre | 1718 | Fane | extinct 1766 | subsidiary title of the Viscount Fane | |
| Baron Newtown | 1718 | Child, Tylney | extinct 1784 | subsidiary title of the Earl Tylney of Castlemaine | |
| Baron Carpenter | 1719 | Carpenter | extinct 1853 | also Viscount Carlingford and Earl of Tyrconnel from 1751 | |
| Baron Claneboye | 1719 | Hamilton | extinct 1798 | subsidiary title of the Viscount Limerick, also Earl of Clanbrassil from 1756 | |
| Baron Londonderry | 1719 | Pitt | extinct 1765 | subsidiary title of the Earl of Londonderry | |
| Baron Barrington | 1720 | Barrington | extinct 1990 | subsidiary title of the Viscount Barrington, also Baron Shute in the United Kingdom from 1880 | |
| Baron Beresford | 1720 | Beresford | extant | subsidiary title of the Viscount Tyrone, also Earl of Tyrone from 1746, Baron Tyrone in Great Britain from 1786, and Marquess of Waterford in Ireland from 1789 | |
| Baron Gage | 1720 | Gage | extant | subsidiary title of the Viscount Gage; also Baron Gage in Great Britain from 1780 to 1791; also Baron Gage in Great Britain from 1790 | |
| Baron Edenderry | 1720 | Blundell | extinct 1756 | subsidiary title of the Viscount Blundell | |
| Baron Vane of Dungannon | 1720 | Vane | extinct 1789 | subsidiary title of the Viscount Vane | |
| Baron Bessborough | 1721 | Ponsonby | extant | subsidiary title of the Earl of Bessborough; also Baron Ponsonby of Sysonby in Great Britain from 1749; also Baron Duncannon in the United Kingdom from 1844; also Earl of Bessborough in the United Kingdom from 1937 to 1993 | |
| Baron Clifton of Rathmore | 1721 | Bligh | extant | subsidiary title of the Earl of Darnley; also Baron Clifton in England from 1728 to 1900 and from 1937 | |
| Baron Darcy of Navan | 1721 | Darcy | extinct 1733 | ||
| Baron Whitworth | 1721 | Whitworth | extinct 1725 | ||
| Baron Kilmaine | 1722 | O'Hara | extinct 1774 | also Baron Tyrawley in Ireland from 1724 | |
| Baron Temple of Mount Temple | 1723 | Temple | extinct 1865 | subsidiary title of the Viscount Palmerston | |
| Baron Micklethwaite | 1724 | Micklethwaite | extinct 1734 | first Baron created Viscount Micklethwaite in 1727 | |
| Baron Culmore | 1725 | Bateman | extinct 1802 | subsidiary title of the Viscount Bateman | |
| Baron Killard | 1727 | Monckton, Monckton-Arundell | extant | subsidiary title of the Viscount Galway; also Baron Monckton of Serlby in the United Kingdom from 1887 to 1971 | |
| Baron Wyndham | 1731 | Wyndham | extinct 1745 | ||
| Baron Castle Durrow | 1733 | Flower | extant | created Viscount Ashbrook in Ireland in 1751 | |
| Baron Catherlough | 1733 | Fane | extinct 1762 | also Baron Burghersh, Baron Le Despencer and Earl of Westmorland in England from 1736 to 1762 | |
| Baron Desart | 1733 | Cuffe | extinct 1934 | also Viscount Desart from 1781, also Viscount Castlecuffe and Earl of Desart from 1793, also Baron Desart in the United Kingdom from 1909 | |
| Baron Sundon | 1735 | Clayton | extinct 1752 | ||
| Baron Braco of Kilbryde | 1735 | Duff | extinct 1912 | created Earl Fife in 1759 | |
| Baron Belfield | 1738 | Rochfort | extinct 1814 | subsidiary title of the Earl of Belvidere | |
| Baron Maule | 1743 | Maule | extinct 1782 | subsidiary title of the Earl Panmure | |
| Baron Newport of Newport | 1743 | Jocelyn | extant | subsidiary title of the Viscount Jocelyn; also Earl of Roden from 1771; also Baron Clanbrassil in the United Kingdom from 1821 from 1897 | |
| Baron Wingfield | 1743 | Wingfield | extant | subsidiary title of the Viscount Powerscourt, also Baron Powerscourt in the United Kingdom from 1885 | |
| Baron Fortescue of Credan | 1746 | Fortescue-Aland | extinct 1781 | ||
| Baron Luxborough | 1746 | Knight | extinct 1772 | subsidiary title of the Earl of Catherlough | |
| Baron Mornington | 1746 | Wesley, Wellesley | extant | also Earl of Mornington from 1760, Marquess Wellesley from 1799 to 1842 and Duke of Wellington in the United Kingdom from 1863 | |
| Baron Kingsborough | 1748 | King | extinct 1755 | ||
| Baron Knapton | 1750 | Vesey | extant | created Viscount de Vesci in 1776, also Baron de Vesci in the United Kingdom from 1884 to 1903 | |
| Baron Malton | 1750 | Watson-Wentworth | extinct 1782 | subsidiary title of the Earl Malton (created September 1750), also Baron Rockingham in England from December 1750), also Baron Wath, Baron Malton, Baron Rockingham, Viscount Higham, Earl of Malton and Marquess of Rockingham in Great Britain from December 1750 | |
| Baron Rawdon | 1750 | Rawdon | extinct 1868 | subsidiary title of the Earl of Moira, also Baron Rawdon in Great Britain from 1783, also Baron Botreaux, Baron Hungerford and Baron de Moleyns in England from 1808, also Viscount Loudoun, Earl Rawdon and Marquess of Hastings in the United Kingdom from 1816, also Lord Tarrinzean and Mauchline, Lord Campbell of Loudoun and Earl of Loudoun in Scotland from 1840 (which titles are still extant - see the Earl of Loudoun), also Baron Grey de Ruthyn in England from 1858 | |
| Baron Dunkeron | 1751 | Petty-Fitzmaurice | extant | subsidiary title of the Viscount Fitzmaurice, also Earl of Shelburne from 1753; Baron Wycombe of Chipping Wycombe from 1760 and Marquess of Lansdowne from 1784 in Great Britain | |
| Baron Loftus | 1751 | Loftus, Hume-Loftus | extinct 1783 | created Viscount Loftus in 1756; Earl of Ely from 1766 to 1769 and from 1771 to 1783 | |
| Baron Carysfort | 1752 | Proby | extinct 1909 | also Earl of Carysfort from 1789, also Baron Carysfort in the United Kingdom from 1801 | |
| Baron Conyngham | 1753 | Conyngham | extant | also Viscount Conyngham from 1756 to 1781, Earl Conyngham from 1780 to 1781, Viscount Conyngham from 1789, Earl Conyngham from 1797, Marquess Conyngham from 1816, Baron Minster in the United Kingdom from 1821 | |
| Baron Milton | 1753 | Damer | extinct 1808 | created Baron Milton in Great Britain in 1763 and Earl of Dorchester in Great Britain in 1792 | |
| Baron Pollington | 1753 | Savile | extant | subsidiary title of the Earl of Mexborough | |
| Baron Ludlow | 1755 | Ludlow | extinct 1842 | subsidiary title of the Earl Ludlow, also Baron Ludlow in the United Kingdom from 1831 | |
| Baron Blakeney | 1756 | Blakeney | extinct 1756 | ||
| Baron Farnham | 1756 | Maxwell | extant | also Viscount Farnham from 1760 to 1779 and from 1781 to 1823 and Earl of Farnham from 1763 to 1779 and from 1785 to 1823 | |
| Baron Longford | 1756 | Pakenham | extant | also Earl of Longford in Ireland from 1794, also Baron Silchester in the United Kingdom from 1821, also Baron Pakenham from 1961, also Baron Pakenham of Cowley (life peerage) from 1999 to 2001 | |
| Baron Mountmorres | 1756 | Morres, de Montmorency | extinct 1951 | subsidiary title of the Viscount Mountmorres | |
| Baron Castle Martyr | 1756 | Boyle | extant | subsidiary title of the Earl of Shannon; also Baron Carleton in Great Britain from 1786 | |
| Baron Ibrackan | 1756 | Wyndham-O'Brien | extinct 1774 | subsidiary title of the Earl of Thomond | |
| Baron Russborough | 1756 | Leeson | extinct 1891 | subsidiary title of the Earl of Milltown | |
| Baron Bowes | 1758 | Bowes | extinct 1767 | ||
| Baron Brandon | 1758 | Crosbie | extinct 1832 | also Viscount Crosbie from 1771 to 1815 and Earl of Glandore from 1776 to 1815 | |
| Baron Saunders | 15 August 1758 | Gore | extant | subsidiary title of the Viscount Sudley; created Earl of Arran in 1762 | |
| Baron Lisle | 1758 | Lysaght | extant | ||
| Baron Courtown | 1758 | Stopford | extant | also Earl of Courtown from 1762 and Baron Saltersford in Great Britain from 1796 | |
| Baron Annesley | 1758 | Annesley | extant | also Viscount Glerawly from 1766 and Earl Annesley from 1789 | |
| Baron Mount Eagle | 1760 | Browne | extant | also Viscount Westport from 1768, Earl of Altamont from 1771 and Marquess of Sligo from 1800, Baron Monteagle in the United Kingdom from 1806 | |
| Baron Headfort | 1760 | Taylour | extant | created Viscount Headfort in 1762, Earl of Bective in 1766 and Marquess of Headfort in 1800; also Baron Kenlis in the United Kingdom from 1831 | |
| Baron Holmes | 1760 | Holmes | extinct 1764 | ||
| Baron Mountflorence | 1760 | Cole | extant | also Viscount Enniskillen from 1776, Earl of Enniskillen from 1789 and Baron Grinstead in the United Kingdom from 1815 | |
| Baron Winterton | 1761 | Turnour | extant | subsidiary title of the Earl Winterton; also Baron Turnour in the United Kingdom from 1952 to 1962 | |
| Baron Clive of Plassey | 1762 | Clive | extant | also Baron Clive of Walcot in Great Britain from 1794 and Earl of Powis in the United Kingdom from 1804 | |
| Baron Coleraine | 1762 | Hanger | extinct 1824 | ||
| Baron Orwell | 1762 | Vernon | extinct 1823 | subsidiary title of the Earl of Shipbrooke | |
| Baron Waltham | 1762 | Olmius | extinct 1787 | ||
| Baron Baltinglass | 1763 | Stratford | extinct 1875 | created Viscount Aldborough in 1776 and Earl of Aldborough in 1777 in Ireland | |
| Baron Saint George | 1763 | Saint-George | extinct 1775 | ||
| Baron Gore | 1764 | Gore | extinct 1802 | subsidiary title of the Earl of Ross | |
| Baron Kilworth | 1764 | Moore | extinct 1915 | subsidiary title of the Viscount Mount Cashell, also Earl of Mount Cashell from 1781 | |
| Baron Kingston | 1764 | King, King-Tenison | extant | subsidiary title of the Earl of Kingston; also Baron Kingston in the United Kingdom from 1821 to 1869; also Baron Erris and Viscount Lorton in Ireland from 1869 | |
| Baron Hill of Olderfleet | 1765 | Hill-Trevor | extinct 1862 | subsidiary title of the Viscount Dungannon | |
| Baron Annaly | 1766 | Gore | extinct 1784 | ||
| Baron Ardelve | 1766 | Mackenzie | extinct 1781 | subsidiary title of the Earl of Seaforth | |
| Baron Gillford | 1766 | Meade | extant | subsidiary title of the Earl of Clanwilliam; also Baron Clanwilliam in the United Kingdom from 1828 | |
| Baron Pigot | 1766 | Pigot | extinct 1777 | ||
| Baron Mulgrave | 1767 | Phipps | extant | also Baron Mulgrave in the United Kingdom from 1790 to 1792; also Baron Mulgrave in the United Kingdom from 1794, Viscount Normanby and Earl of Mulgrave in the United Kingdom from 1812; also Marquess of Normanby in the United Kingdom from 1838 | |
| Baron Nugent | 1767 | Nugent | extinct 1788 | subsidiary title of the Earl Nugent (extinct 1889), the latter title which merged with the title of Marquess of Buckingham in 1788, also Duke of Buckingham and Chandos from 1822 | |
| Baron Erne | 1768 | Creighton, Crichton | extant | also Earl Erne from 1789 and Baron Fermanagh in the United Kingdom from 1876 | |
| Baron Eyre | 1768 | Eyre | extinct 1781 | ||
| Baron Irnham | 1768 | Luttrell | extinct 1829 | subsidiary title of the Earl of Carhampton | |
| Baron Lifford | 1768 | Hewitt | extant | also Viscount Lifford from 1781 | |
| Baron Sydney | 1768 | Cosby | extinct 1774 | ||
| data-sort-value="Baron Arden" | Baroness Arden | 1770 | Perceval | extinct 2011 | also Baron Arden in the United Kingdom from 1802; also Earl of Egmont from 1841 |
| Baron Bangor | 1770 | Ward | extant | subsidiary title of the Viscount Bangor | |
| Baron Clermont | 1770 | Fortescue | extinct 1806 | also Baron Clermont and Viscount Clermont in Ireland from 1776 and Earl of Clermont in Ireland from 1777 | |
| Baron Dartrey | 1770 | Dawson | extinct 1813 | subsidiary title of the Viscount Cremorne, also Baron Cremorne from 1797 | |
| Baron Dawson | 1770 | Dawson, Dawson-Damer | extant | subsidiary title of the Viscount Carlow; created Earl of Portarlington in Ireland in 1785 | |
| Baron Melbourne | 1770 | Lamb | extinct 1853 | subsidiary title of the Viscount Melbourne, also Baron Melbourne in the United Kingdom from 1815, also Baron Beauvale in the United Kingdom from 1848 | |
| Baron Clermont | 1776 | Fortescue | extinct 1829 | subsidiary title of the Earl of Clermont | |
| Baron Clifden | 1776 | Agar, Agar-Ellis | extinct 1974 | also Viscount Clifden from 1781, also Baron Mendip in Great Britain from 1802 and Baron Dover in the United Kingdom from 1836 | |
| Baron Clonmore | 1776 | Howard, Forward-Howard | extinct 1978 | subsidiary title of the Viscount Wicklow, also Countess of Wicklow from 1793 | |
| Baron de Montalt | 1776 | Maude | extinct 1777 | ||
| Baron Gosford | 1776 | Acheson | extant | subsidiary title of the Earl of Gosford; also Baron Worlingham in the United Kingdom from 1835; also Baron Acheson in the United Kingdom from 1849 | |
| Baron Kensington | 1776 | Edwardes | extant | also Baron Kensington in the United Kingdom from 1886 | |
| Baron Lucan | 1776 | Bingham | extant | subsidiary title of the Earl of Lucan; also Baron Bingham in the United Kingdom from 1934 | |
| Baron Macartney | 1776 | Macartney | extinct 1806 | subsidiary title of the Earl Macartney, also Baron Macartney in Great Britain from 1796 | |
| Baron Macdonald | 1776 | Macdonald | extant | ||
| Baron Massy | 1776 | Massy | extant | ||
| Baron Milford | 1776 | Philipps | extinct 1823 | ||
| Baron Naas | 1776 | Bourke | extant | subsidiary title of the Earl of Mayo | |
| Baron Newborough | 1776 | Wynn | extant | ||
| Baron Newhaven | 1776 | Mayne | extinct 1794 | ||
| Baron Ongley | 1776 | Henley-Ongley | extinct 1877 | ||
| Baron Doneraile | 1776 | St Leger | extant | created Viscount Doneraile in Ireland in 1785 | |
| Baron Shuldham | 1776 | Shuldham | extinct 1798 | ||
| Baron Templetown | 1776 | Upton | extinct 1981 | also Viscount Templetown from 1806 | |
| Baron Westcote | 1776 | Lyttelton | extant | also Baron Lyttelton of Frankley in Great Britain from 1794; also Baron Cobham and Viscount Cobham in Great Britain from 1889 | |
| Baron Rokeby | 1777 | Robinson | extinct 1883 | ||
| Baron Belmore | 1781 | Lowry-Corry | extant | subsidiary title of the Earl Belmore | |
| Baron Muskerry | 1781 | Deane | extant | ||
| Baron Tracton | 1781 | Dennis | extinct 1782 | ||
| Baron Sheffield of Dunamore | 1780 | Baker-Holroyd | extinct 1909 | subsidiary title of the Earl of Sheffield, also Baron Sheffield in the United Kingdom from 1802, also Baron Sheffield of Roscommon in Ireland from 1783, a title which is still extant and since 1909 merged with the titles of Baron Stanley of Alderley and Baron Eddisbury in the United Kingdom | |
| Baron Welles | 1781 | Knox | extant | also Viscount Northland from 1791 and Earl of Ranfurly from 1831; also Baron Ranfurly in the United Kingdom from 1826 | |
| Baron Conyngham | 4 January 1781 | Conyngham | extinct 1781 | ||
| Baron Hood | 1782 | Hood | extant | also Viscount Hood in Great Britain from 1796; also Baron Hood in Great Britain from 1816 | |
| Baron Delaval | 1783 | Delaval | extinct 1808 | also Baron Delaval in Great Britain from 1786 | |
| Baron Donoughmore | 1783 | Hely-Hutchinson | extant | subsidiary title of the Earl of Donoughmore; also Viscount Hutchinson since 1821 and Baron Hutchinson in the United Kingdom from 1825 to 1832 | |
| Baron Harberton | 1783 | Pomeroy | extant | also Viscount Harberton from 1791 | |
| Baron Leitrim | 1783 | Clements | extinct 9 June 1952 | also Viscount Leitrim from 1793 and Earl of Leitrim from 1795, also Baron Clements in the United Kingdom from 1831 | |
| Baron Llandaff | 1783 | Mathew | extinct 1833 | subsidiary title of the Earl of Llandaff | |
| Baron Penrhyn | 1783 | Pennant | extinct 1808 | ||
| Baron Sheffield of Roscommon | 1783 | Baker-Holroyd, Holroyd, Stanley | extant | also Baron Sheffield of Dunamore in Peerage of Ireland until 1909; also Baron Sheffield in the United Kingdom from 1802 to 1909; also Viscount Pevensey and Earl of Sheffield in the United Kingdom from 1816 to 1909; also Baron Stanley of Alderley and Baron Eddisbury in the United Kingdom from 1909 | |
| Baron Muncaster | 1783 | Pennington | extinct 1917 | also Baron Muncaster in the United Kingdom from 1898 | |
| Baron Riversdale | 1783 | Tonson | extinct 1861 | ||
| Baron Earlsfort | 1784 | Scott | extinct 1935 | subsidiary title of the Earl of Clonmell | |
| Baron de Montalt | 1785 | Maude | extant | subsidiary title of the Viscount Hawarden; also Earl de Montalt in the United Kingdom from 1886 to 1905 | |
| Baron Lismore | 1785 | O'Callaghan | extinct 1898 | created Viscount Lismore in 1806; also Baron Lismore in the United Kingdom from 1838 | |
| Baron Loftus | 1785 | Loftus | extant | also Viscount Loftus from 1789, Earl of Ely from 1794 and Marquess of Ely from 1801, Baron Loftus in the United Kingdom from 1801 | |
| Baron Sunderlin | 1785 | Malone | extinct 1816 | created Baron Sunderlin also in 1797, which title also became extinct in 1816 | |
| Baron Fitzgibbon | 1789 | Fitzgibbon | extinct 1864 | created Viscount FitzGibbon in 1793 and Earl of Clare in 1795 | |
| Baron Annaly | 1789 | Gore | extinct 1793 | ||
| Baron Auckland | 1789 | Eden | extant | also Baron Auckland in the Great Britain from 1793; created Earl of Auckland in the United Kingdom in 1839, a title which became extinct in 1849 | |
| Baron Carleton | 1789 | Carleton | extinct 1825 | created Viscount Carleton in 1797 | |
| Baron Cloncurry | 1789 | Lawless | extinct 1929 | also Baron Cloncurry in the United Kingdom from 1831 | |
| Baron Eardley | 1789 | Eardley | extinct 1824 | ||
| Baron Londonderry | 1789 | Stewart | extant | created Viscount Castlereagh in 1795, Earl of Londonderry in 1796 and Marquess of Londonderry in 1816; also Baron Stewart from 1822 and Earl Vane from 1823 in the United Kingdom | |
| Baron Kilmaine | 1789 | Browne | extant | ||
| Baron Mountjoy | 1789 | Gardiner | extinct 1829 | subsidiary title of the Viscount Mountjoy, also Earl of Blessington from 1816 | |
| Baron Caledon | 1790 | Alexander | extant | created Viscount Caledon in 1797 and Earl of Caledon in 1800 | |
| Baron Callan | 1790 | Agar | extinct 1815 | ||
| Baron Clonbrock | 1790 | Dillon | extinct 1926 | ||
| Baron Glentworth | 1790 | Pery | extant | created Earl of Limerick in 1803 | |
| data-sort-value="Baron Oriel" | Baroness Oriel | 1790 | Foster, Skeffington | extant | also Viscount Ferrard in Ireland from 1797, Baron Oriel in the United Kingdom from 1828 and Viscount Massereene in Ireland from 1843 |
| Baron St Helens | 1791 | Fitzherbert | extinct 1839 | also Baron St Helens in the United Kingdom from 1801 | |
| data-sort-value="Baron Fermanagh" | Baroness Fermanagh | 1792 | Verney | extinct 1810 | |
| Baron Oxmantown | 1792 | Parsons | extant | also Viscount Oxmantown from 1795 to 1807 and Earl of Rosse from 1806 | |
| Baron Waterpark | 1792 | Cavendish | extant | ||
| Baron Bandon | 1793 | Bernard | extinct 1979 | subsidiary title of the Earl of Bandon | |
| Baron O'Neill | 1793 | O'Neill | extinct 1855 | subsidiary title of the Viscount O'Neill, also Viscount Raymond and Earl O'Neill from 1800 to 1841 | |
| Baron Bridport | 1794 | Hood | extant | also Baron Bridport in Great Britain from 1796 to 1814; also Viscount Bridport in Great Britain from 1800 to 1814; also Viscount Bridport in the United Kingdom from 1868 | |
| Baron Graves | 1794 | Graves | extant | ||
| 1795 | Yelverton | dormant 1910 | subsidiary title of the Viscount Avonmore | ||
| data-sort-value="Baron Kilwarden" | Baroness Kilwarden | 1795 | Wolfe | extinct 1830 | also Baron Kilwarden (created 1798) and Viscount Kilwarden from 1804 |
| Baron Lavington | 1795 | Payne | extinct 1807 | ||
| Baron Longueville | 1795 | Longfield | extinct 1811 | subsidiary title of the Viscount Longueville | |
| Baron Rancliffe | 1795 | Parkyns | extinct 1850 | ||
| Baron Somerton | 1795 | Agar | extant | subsidiary title of the Earl of Normanton; also Baron Somerton in the United Kingdom from 1873 and Baron Mendip in Great Britain from 1974 | |
| Baron Carrington | 1796 | Smith, Carrington, Wynn-Carington, Carington | extant | also Baron Carrington from 1797 in Great Britain; Earl Carrington from 1895 to 1928, Marquess of Lincolnshire from 1912 to 1928 and Baron Carington of Upton from 1999, in the United Kingdom | |
| Baron Huntingfield | 1796 | Vanneck | extant | ||
| Baron Rossmore | 1796 | Cuninghame, Westenra | extant | also Baron Rossmore in the United Kingdom from 1838 | |
| Baron Bantry | 1797 | White-Hedges-White | extinct 1891 | subsidiary title of the Earl of Bantry | |
| Baron Crofton | 1797 | Crofton | extant | ||
| Baron Cremorne | 1797 | Dawson | extinct 1933 | also Baron Dartrey and Viscount Cremorne (which titles became extinct in 1813), also Baron Dartrey from 1847 and Earl of Dartrey from 1866 in the United Kingdom | |
| Baron Headley | 1797 | Allanson-Winn | extinct 1994 | ||
| Baron Holmes | 1797 | Holmes | extinct 1804 | ||
| Baron Hotham | 1797 | Hotham | extant | ||
| Baron Kilconnel | 1797 | Trench | extant | subsidiary title of the Earl of Clancarty; also Baron Trench and Viscount Clancarty in the United Kingdom from 1815 and 1823 respectively | |
| Baron Monck | 1797 | Monck | extant | also Viscount Monck from 1801 and Baron Monck in the United Kingdom from 1866; also Earl of Rathdowne in the Peerage of Ireland from 1822 to 1848 | |
| Baron Keith | 1797 | Elphinstone | extinct 1867 | also Baron Keith from 1801 and Viscount Keith from 1814 to 1823, in the United Kingdom; Lord Nairne in Scotland from 1824 | |
| data-sort-value="Baron Norwood" | Baroness Norwood | 1797 | Toler, Graham-Toler | extant | also Baron Norbury in Ireland from 1822; also Viscount Glandine and Earl of Norbury in Peerage of Ireland from 1832 |
| Baron Sunderlin | 1797 | Sunderlin | extinct 1816 | had been created Baron Sunderlin already in 1785, which title also became extinct in 1816 | |
| Baron Tullamore | 1797 | Bury | extinct 1875 | subsidiary title of the Earl of Charleville | |
| Baron Tyrawley | 1797 | Cuffe | extinct 1821 | ||
| Baron Castlerosse | 1798 | Browne | extinct 1952 | subsidiary title of the Viscount Kenmare; created Earl of Kenmare in 1801; also Baron Kenmare in the United Kingdom from 1841 to 1853 and from 1856 | |
| Baron ffrench | 1798 | ffrench | extant | ||
| Baron Kilwarden | 1798 | Wolfe | extinct 1830 | subsidiary title of the Viscount Kilwarden, also Baron Kilwarden (created 1795) from 1804 | |
| Baron Teignmouth | 1798 | Shore | extinct 1981 | ||
| Baron Henley | 1799 | Eden, Henley | extant | also Baron Northington in the United Kingdom from 1885 | |
| Baron Adare | 1800 | Quin | extinct 2011 | created Earl of Dunraven and Mount-Earl (1822) in Ireland; also Baron Kenry in the United Kingdom from 1826 to 1926 | |
| Baron Castle Coote | 1800 | Coote | extinct 1827 | also Earl of Mountrath from 1800 to 1802 | |
| Baron Clanmorris | 1800 | Bingham | extant | ||
| Baron de Blaquiere | 1800 | de Blaquiere | extinct 1920 | ||
| Baron Dufferin and Claneboye | 1800 | Blackwood, Hamilton-Temple-Blackwood | extant | created Earl of Dufferin on 13 November 1871 and Marquess of Dufferin and Ava on 17 November 1888, which titles all became extinct 29 May 1988 | |
| Baron Dunalley | 1800 | Prittie | extant | ||
| Baron Ennismore | 1800 | Hare | extant | subsidiary title of the Earl of Listowel; also Baron Hare in the United Kingdom from 1869 | |
| Baron Frankfort | 1800 | de Montmorency | extinct 1917 | subsidiary title of the Viscount Frankfort de Montmorency | |
| Baron Lecale | 1800 | FitzGerald | extinct 1810 | ||
| Baron Radstock | 1800 | Waldegrave | extinct 1953 | ||
| Baron Erris | 1800 | King, King-Tenison | extant | subsidiary title of the Viscount Lorton; also Earl of Kingston in Ireland from 1869 | |
| Baron Ashtown | 1800 | Trench | extant | ||
| Baron Clarina | 1800 | Massey | extinct 1952 | ||
| Baron Gardner | 1800 | Gardner | dormant 1883 | also Baron Gardner in the United Kingdom from 1806 | |
| Baron Glenbervie | 1800 | Douglas | extinct 1823 | ||
| Baron Norbury | 1800 | Toler, Graham-Toler | extant | also Baron Norwood in Ireland from 1822; also Viscount Glandine and Earl of Norbury in Ireland from 1831 | |
| data-sort-value="Baron Nugent" | Baroness Nugent | 1800 | Nugent-Temple-Grenville, Nugent-Grenville | extinct 1850 | |
| Baron Hartland | 1800 | Mahon | extinct 1845 | ||
| Baron Henniker | 1800 | Henniker, Henniker-Major | extant | also Baron Hartismere in the United Kingdom from 1866 | |
| Baron Langford | 1800 | Rowley, Rowley-Conwy | extant | ||
| Baron Mount Sandford | 1800 | Sandford | extinct 1846 | ||
| data-sort-value="Baron Newcomen" | Baroness Newcomen | 1800 | Gleadowe-Newcomen | extinct 1825 | first Baroness created Viscountess Newcomen in 1803 |
| Baron Tara | 1800 | Preston | extinct 1821 | ||
| Baron Ventry | 1800 | Mullins | extant | ||
| Baron Wallscourt | 1800 | Blake | extinct 1920 | Suspended from 1803 to 1806 | |
| Baron Whitworth | 1800 | Whitworth | extinct 1825 | created Viscount Whitworth in 1813 and Earl Whitworth in 1815 in the United Kingdom | |
| Baron Rendlesham | 1806 | Thellusson | extant | ||
| Baron Kiltarton | 1810 | Prendergast-Smyth, Vereker | extant | subsidiary title of the Viscount Gort | |
| Baron Decies | 1812 | Beresford, Horsley-Beresford | extant | ||
| Baron Castlemaine | 1812 | Handcock | extant | ||
| Baron Garvagh | 1818 | Canning | extant | ||
| Baron Howden | 1819 | Howden | extinct 1873 | also Baron Howden in the United Kingdom from 1831 | |
| Baron Downes | 1822 | Downes, de Burgh | extinct 1863 | ||
| Baron Bloomfield | 1825 | Bloomfield | extinct 1879 | also Baron Bloomfield in the United Kingdom from 1871 | |
| data-sort-value="Baron Fitzgerald and Vesey" | Baroness Fitzgerald and Vesey | 1826 | Fitzgerald | extinct 1860 | also Baron Fitzgerald in the United Kingdom from 1835 to 1843 |
| Baron O'Grady | 1831 | O'Grady | extinct 1955 | subsidiary title of the Viscount Guillamore | |
| Baron Talbot of Malahide | 1831 | Talbot, Arundell | extant | also Baron Furnival in the United Kingdom from 1839 to 1849; also Baron Talbot de Malahide in the United Kingdom from 1856 to 1973 | |
| Baron Carew | 1834 | Carew, Conolly-Carew | extant | also Baron Carew in the United Kingdom from 1838 | |
| Baron Oranmore and Browne | 1836 | Browne | extant | also Baron Mereworth in the United Kingdom from 1926 | |
| Baron Dunsandle and Clanconal | 1845 | Daly | extinct 1911 | ||
| Baron Bellew | 1848 | Bellew | extant | ||
| Baron Clermont | 1852 | Fortescue, Parkinson-Fortescue | extinct 1898 | also Baron Clermont in the United Kingdom from 1866 to 1887 and Baron Carlingford in the United Kingdom from 1887 | |
| Baron Fermoy | 1856 | Roche | extant | ||
| Baron Athlumney | 1863 | Somerville | extinct 1929 | also Baron Meredyth in the United Kingdom from 1866 | |
| Baron Rathdonnell | 1868 | McClintock, McClintock-Bunbury | extant | ||
| Baron Curzon of Kedleston | 1898 | Curzon | extinct 1925 | created Earl Curzon of Kedleston in 1911 and Marquess Curzon of Kedleston in 1921, in the United Kingdom | |