Baron Athenry circa 1280 Bermingham dormant 1799 also Earl of Louth from 1759 to 1799, when this title became extinct
Baron Kingsale 1340? de Courcy extant
Baron Kerry 1223 Fitzmaurice extant also Earl of Kerry from 1723 and Marquess of Lansdowne in Great Britain from 1818
Baron Dunboyne 1324 Butler, Clifford-Butler extant confirmed by letters patent in 1541
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 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
Baron Trimlestown 1462 Barnewall extant
Baron Louth 1541 Plunkett extant
Baron Upper Ossory 1541 Fitzpatrick forfeit 1691
Baron Bourke of Castleconnell 1580 Bourke forfeit 1691
Baron Bourke of Brittas 1618 Bourke forfeit 1691
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 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 Blayney 1621 Blayney extinct 1874
Baron Dockwra 1621 Dockwra extinct 1647
Baron Esmonde 1622 Esmonde extinct 1646
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 Coleraine 1625 Hare extinct 1749
Barons created 1625-1750
Baron Sherard 1627 Sherard extinct 1931 also Baron Harborough and Earl of Harborough in Great Britain from 1732 to 1859
Baron Maguire 1628 Maguire forfeit 1644
Baron Alington 1642 Alington extinct 1723 also Baron Alington in England from 1682
Baron Hawley 1646 Hawley extinct 1790
Baron Kingston 1660 King extinct 1761
Baron Bellew of Duleek 1686 Bellew extinct 1770
Baron Shelburne 1688 Petty extinct 1696
Baroness Shelburne 1688 Petty extinct 1708
Baron Cutts of Gowran 1690 Cutts extinct 1707
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 Pierrepont 1702 Pierrepont extinct 1715 also Baron Pierrepont in Great Britain from 1714
Baron Tyrawley 1706 O'Hara extinct 1773 also Baron Kilmaine in Ireland from 1724
Baron Carbery 1715 Evans, Evans-Freke extant
Baron Ferrard of Beaulieu 1715 Tichborne extinct 1731
Baron Ranelagh 1715 Cole extinct 1754
Baron Saint George 1715 Saint-George extinct 1735
Baron Aylmer 1718 Aylmer, Whitworth-Aylmer extant
Baron Darcy of Navan 1721 Darcy extinct 1733
Baron Kilmaine 1722 O'Hara extinct 1722 also Baron Tyrawley in Ireland from 1724
Baron Wyndham 1731 Wyndham extinct 1745
Baron Sundon 1735 Clayton extinct 1752
Baron Montfort of Horseheath 1741 Bromley extinct 1851
Baron Fortescue of Credan 1746 Fortescue-Aland extinct 1781
Baron Kingsborough 1748 King extinct 1755
Barons created 1750-1800
Baron Milton 1753 Damer extinct 1808 also Baron Milton in Great Britain from 1763, also Viscount Milton and Earl of Dorchester in Great Britain from 1792
Baron Bowes 1758 Bowes extinct 1767
Baron Blakeney 1756 Blakeney extinct 1756
Baron Lisle of Mountnorth 1758 Lysaght extant
Baron Holmes 1760 Holmes extinct 1764
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 Waltham 1762 Olmius extinct 1787
Baron Saint George 1763 Saint-George extinct 1775
Baron Annaly 1766 Gore extinct 1784
Baron Pigot 1766 Pigot extinct 1777
Baron Eyre 1768 Eyre extinct 1781
Baron Sydney 1768 Cosby extinct 1774
Baron Arden 1770 Perceval extant also Baron Arden in the United Kingdom from 1802; also Earl of Egmont from 1841
Baron de Montalt 1776 Maude extinct 1777
Baron Kensington 1776 Edwardes extant also Baron Kensington in the United Kingdom from 1886
Baron Macdonald of Slate 1776 Macdonald extant
Baron Massy 1776 Massy extant
Baron Milford 1776 Philipps extinct 1823
Baron Newborough 1776 Wynn extant
Baron Newhaven 1776 Mayne extinct 1794
Baron Ongley 1776 Henley-Ongley extinct 1877
Baron Shuldham 1776 Shuldham extinct 1798
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 Muskerry 1781 Deane extant
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 Tracton 1781 Dennis extinct 1782
Baron Penrhyn 1783 Pennant extinct 1808
Baron Muncaster 1783 Pennington extinct 1917 also Baron Muncaster in the United Kingdom from 1898
Baron Kilmaine 1786 Browne extant
Baron Annaly 1789 Gore extinct 1793
Baron Auckland 1789 Eden extant also Baron Auckland in the Great Britain from 1793, also Baron Eden and Earl of Auckland in the United Kingdom from 1839 to 1849
Baron Cloncurry 1789 Lawless extinct 1929 also Baron Cloncurry in the United Kingdom from 1831
Baron Eardley 1789 Eardley extinct 1824
Baron Callan 1790 Agar extinct 1815
Baron Clonbrock 1790 Dillon extinct 1926
Baron Glentworth 1790 Pery extant also Earl of Limerick in Ireland from 1803; also Baron Foxford in the United Kingdom from 1815
Baron St Helens 1791 Fitzherbert extinct 1839 also Baron St Helens in the United Kingdom from 1801
Baroness Fermanagh 1792 Verney extinct 1810
Baron Waterpark 1792 Cavendish extant
Baron Graves 1794 Graves extant
Baron Lavington 1795 Payne extinct 1807
Baron Rancliffe 1795 Parkyns extinct 1850
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 Crofton 1797 Crofton extant
Baron Headley 1797 Allanson-Winn extinct 1994
Baron Holmes 1797 Holmes extinct 1804
Baron Hotham 1797 Hotham extant
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
Baron Sunderlin 1797 Sunderlin extinct 1816 had been created Baron Sunderlin already in 1785, which title also became extinct in 1816
Baron Tyrawley 1797 Cuffe extinct 1821
Baron ffrench 1798 ffrench extant
Baron Teignmouth 1798 Shore extinct 1981
Baron Henley 1799 Eden, Henley extant also Baron Northington in the United Kingdom from 1885
Barons created 1800-1898
Baron Ashtown 1800 Trench extant
Baron Castle Coote 1800 Coote extinct 1827 also Earl of Mountrath from 1800 to 1802
Baron Clanmorris 1800 Bingham extant
Baron Clarina 1800 Massey extinct 1952
Baron de Blaquiere 1800 de Blaquiere extinct 1920
Baron Dufferin and Claneboye 1800 Blackwood, Hamilton-Temple-Blackwood extant created Baron Clandeboye 1850, Earl of Dufferin and Viscount Clandeboye 1871 and Marquess of Dufferin and Ava and Earl of Ava 1888, which titles all became extinct 1988
Baron Dunalley 1800 Prittie extant
Baron Gardner 1800 Gardner dormant 1883 also Baron Gardner in the United Kingdom from 1806
Baron Glenbervie 1800 Douglas extinct 1823
Baron Hartland 1800 Mahon extinct 1845
Baron Henniker 1800 Henniker, Henniker-Major extant also Baron Hartismere in the United Kingdom from 1866
Baron Howden 1819 Howden extinct 1873 also Baron Howden in the United Kingdom from 1831
Baron Maryborough 1821 Wellesley extinct 1863
Baron Downes 1822 Downes, de Burgh extinct 1863
Baron Bloomfield 1825 Bloomfield extinct 1879 also Baron Bloomfield in the United Kingdom from 1871
Baroness Fitzgerald and Vesey 1826 Fitzgerald extinct 1860 also Baron Fitzgerald in the United Kingdom from 1835 to 1843
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 Curzon of Kedleston 1898 Curzon extinct 1925 also Earl Curzon of Kedleston from 1911 and Marquess Curzon of Kedleston from 1921, in the United Kingdom