The lord high treasurer of Ireland was the head of the Exchequer of Ireland, and chief financial officer of the Kingdom of Ireland. The designation High was added in 1695.

After the Acts of Union 1800 created the United Kingdom of Great Britain and Ireland, the Consolidated Fund Act 1816 merged the Irish Inferior Exchequer into the British Treasury with effect from 1817.

The act also mandated that the post of lord high treasurer of Ireland could only be held together with the post of treasurer of the exchequer, with the person holding both being lord high treasurer. If no person is appointed to the combined positions, then the lord high treasurer of Ireland is placed in commission and represented by the lords commissioners of the Treasury, as has been the case continuously since 1816.

The Superior Irish Exchequer, or Court of Exchequer, remained, led by the Chief Baron of the Irish Exchequer.

Lord treasurers of Ireland 1217–1695 1217–1232: John de St John, Bishop of Ferns 1232–1233: Peter de Rivaux 1233–1235: Eustace, Canon of Chichester 1235–1250: Geoffrey de Turville, Bishop of Ossory 1251–1258: Hugh de Mapilton, Bishop of Ossory 1258–1274: Hugh de Tachmon, or Taghmon, Bishop of Meath 1274–1277: Stephen de Fulbourn, Bishop of Waterford 1277–1278: Robert de Poer 1278–1281: Stephen de Fulbourn, second term 1281–1289: Hugh, Bishop of Meath 1289–1294: Nicholas de Clere, or le Clerk 1294–1300: Sir William de Essendon, also called de Estdene or Eastdene 1300–1304: Richard de Beresford 1304–1305: Sir William de Essendon, also called de Estdene or Eastdene, second term 1305–1307: Richard de Beresford, second term 1307–1312: Alexander de Bicknor 1312–1315: John de Leche 1315–1316:Walter de Islip 1316–1317: John de Hotham 1317–1325:Walter de Islip, second term 1325–1326: Adam de Harvington 1326:Walter de Islip, third term 1326–1330: Robert FitzEustace 1330–1332:Robert le Poer 1332–1334: Sir Thomas de Burgh 1334–1336: William de Cogan 1336–1337: Sir John Ellitker 1337–1340: John ap Rees/Rice 1340–1344: Hugh de Burgh 1344–1348: John de Burnham, Canon of St Patrick's Cathedral, Dublin 1348–1349:Robert de Emeldon 1349-1350: Nicholas Allen, Abbot of St Thomas the Martyr, later Bishop of Meath 1350–1354: Hugh de Burgh, second term 1354–1356: William de Bromley 1356–1357: John Colton, Dean of St Patrick's Cathedral, Dublin and later Archbishop of Armagh 1357–1361: Nicholas Allen, Bishop of Meath 1361–1362: William Chernels, Bishop of Ferns 1362–1364: Thomas Minot, Prior of Mulhuddart and later Archbishop of Dublin 1364–1371: John de Troye, Chancellor of St Patrick's Cathedral 1371–1372: Stephen de Valle, or Wall, Bishop of Meath 1372–1374: Alexander de Balscot, Bishop of Ossory 1374–1375: John Colton second term 1375–1376: Thomas Scurlock, Abbot of St Thomas the Martyr, Dublin 1376–1385: Alexander de Balscot, Bishop of Ossory, second term 1385–1386: William de Chambre, Archdeacon of Dublin 1386–1388: Robert Crick 1388–1392: Richard White, Prior of Kilmainham 1392–1393: Richard Mitford, Bishop of Chichester 1393–1394: John de Thorpe 1394–1395: Richard Mitford, Bishop of Chichester, second term 1395–1396: Stephen, Abbot of St Mary's Abbey, Dublin 1396–1397: William Baltham 1397–1398: Richard Mitford, Bishop of Salisbury, third term 1398–1399: Richard Macclesfield 1399–1400: Robert de Faryngton, or de Farrington 1400–1402: Thomas Bache, Archdeacon of Meath 1402–1409: Sir Laurence Merbury 1409–1412: Sir William Alington, later Treasurer of Normandy and Speaker of the House of Commons(1429) 1412–1413: Sir Laurence Merbury 1413–1414: Hugh de Burgh 1414–1415: John Coryngham 1415–1417: Hugh de Burgh, second term 1417–1421: John Swift 1421: Sir Thomas Strange 1421–1424: William Tynbegh 1424–1426: Hugh Banent 1426: Edward Dantsey, Bishop of Meath 1426–1427: John Blackston 1427–1429: Sir Nicholas Plunket 1429: Thomas de Barry, Bishop of Ossory 1429: Sir Nicholas Plunket, second term 1429–1430: Thomas Scurlock, Prior of St Peter's, near Trim 1430–1437: Sir Thomas Strange 1437–1444: Giles Thorndon 1444–1445: William Chevir or Cheevers 1445–1446: Robert Dyke, Archdeacon of Dublin 1446–1450: Giles Thorndon 1450–1452: John Blackston 1452–1454: Sir Henry Bruin 1454–1492: Sir Rowland FitzEustace (with Sir John Wenlock 1461–1471) 1492–1494: Sir James Ormond 1494–1504: Sir Hugh Conway 1504–1514: Gerald FitzGerald 1514–1517: Christopher Fleming, 8th Baron Slane 1517–1524: John Rawson, Prior of Kilmainham (later Viscount Clontarf) 1524–1530: John Barnewall, 3rd Baron Trimlestown 1530–1532: John Rawson, Prior of Kilmainham 1532–1540: James Butler, Lord Butler 1540–1542: James Butler 1542–1553: James FitzGerald, 14th/15th Earl of Desmond 1553: Sir Edmund Rouse 1553–1558: James FitzGerald, 14th/15th Earl of Desmond, second term 1559–1614: Thomas Butler, 10th Earl of Ormonde 1616–1625: Arthur Chichester, 1st Baron Chichester 1625–1630: Oliver St John, 1st Viscount Grandison 1631–1643: Richard Boyle, 1st Earl of Cork 1643–1660: Interregnum 1660–1695: Richard Boyle, 2nd Earl of Cork

Lord high treasurers of Ireland 1695–1793 Charles Boyle, 2nd Earl of Burlington 4 May 1695 – 9 February 1704 Henry Boyle, 1st Baron Carleton 5 May 1704 – 25 August 1715 Richard Boyle, 3rd Earl of Burlington 25 August 1715 – 3 December 1753, second term William Cavendish, 4th Duke of Devonshire 2 March 1754 – 2 October 1764 vacant William Cavendish, 5th Duke of Devonshire 13 March 1766 – 1793

Commissioners of the Treasury for Ireland 1793–1817 1793: Commission. Richard Boyle, 2nd Earl of Shannon Sir John Parnell, 2nd Baronet John Beresford Sir Henry Cavendish, 2nd Baronet William Burton Conyngham Robert Hobart, Baron Hobart 1795: Commission. Richard Boyle, 2nd Earl of Shannon Sir John Parnell, 2nd Baronet William Burton Conyngham Thomas Pelham John Monck Mason 1796: Commission. Richard Boyle, 2nd Earl of Shannon Sir John Parnell, 2nd Baronet Thomas Pelham John Monck Mason Lodge Morris 1797: Commission. Richard Boyle, 2nd Earl of Shannon Isaac Corry Thomas Pelham John Monck Mason Lodge Morris Robert Stewart, Viscount Castlereagh 1800: Commission. Richard Boyle, 2nd Earl of Shannon Isaac Corry Robert Stewart, Viscount Castlereagh Lodge de Montmorency, 1st Baron Frankfort de Montmorency John Loftus, Viscount Loftus William Wickham Maurice FitzGerald 1801: Commission. Richard Boyle, 2nd Earl of Shannon Isaac Corry Charles Abbot Lodge de Montmorency, 1st Viscount Frankfort de Montmorency John Loftus, Viscount Loftus Maurice FitzGerald 1803: Commission. Richard Boyle, 2nd Earl of Shannon Isaac Corry Lodge de Montmorency, 1st Viscount Frankfort de Montmorency John Loftus, Viscount Loftus Maurice FitzGerald William Wickham 1804: Commission. John Foster Sir Evan Nepean, 1st Baronet Lodge de Montmorency, 1st Viscount Frankfort de Montmorency John Loftus, Viscount Loftus Maurice FitzGerald 1804: Commission. John Foster Lodge de Montmorency, 1st Viscount Frankfort de Montmorency John Loftus, Viscount Loftus Maurice FitzGerald George Knox Nicholas Vansittart 1805: Commission. John Foster Lodge de Montmorency, 1st Viscount Frankfort de Montmorency John Loftus, Viscount Loftus Maurice FitzGerald George Knox Sir Laurence Parsons, 5th Baronet Charles Long 1806: Commission. William Grenville, 1st Baron Grenville Sir John Newport, 1st Baronet Maurice FitzGerald Sir Laurence Parsons, 5th Baronet Charles O'Hara Henry Parnell William Burton William Elliot 1807: Commission Laurence Parsons, 2nd Earl of Rosse John Foster Arthur Wellesley Thomas Foster Sir George Hill, 2nd Baronet John Maxwell-Barry Charles Vereker 1810: Commission. Spencer Perceval John Foster William Wellesley-Pole Laurence Parsons, 2nd Earl of Rosse Sir George Hill, 2nd Baronet John Maxwell-Barry Thomas Foster Charles Vereker W. W. H. Guarden 1811: Commission. Spencer Perceval John Foster William Wellesley-Pole Laurence Parsons, 2nd Earl of Rosse Sir George Hill, 2nd Baronet John Maxwell-Barry Thomas Foster Charles Vereker William Odell 1812: Commission. John Foster William Wellesley-Pole Sir George Hill, 2nd Baronet John Maxwell-Barry Thomas Foster Charles Vereker William Odell 1813: Commission. John Foster William Wellesley-Pole Sir George Hill, 2nd Baronet John Maxwell-Barry Thomas Foster Charles Vereker William Odell Henry John Clements Edmund Alexander Macnaghten 1814: Commission: Robert Jenkinson, 2nd Earl of Liverpool William Vesey-FitzGerald Robert Peel Sir George Hill, 2nd Baronet John Maxwell-Barry William Odell Henry John Clements Edmond Alexander Macnaghten 1817: Board abolished the office of lord high treasurer of Ireland and placed into commission as lords commissioners of the Treasury.

Vice-treasurers of Ireland 1430: Christopher Bernevall 1522–: John Barnewall, 3rd Baron Trimlestown 1523: William Darcy c.1533: William Bathe 1534–1552: Sir William Brabazon 1551–?1553: Andrew Wise c.1553–?1555 Sir Edmund RousHistory of Parliament 1556–1559: Henry SidneyHoP 1559–1571: William FitzwilliamHoP 1572–1579: Edward FittonHoP 1579–1582: Sir Henry WallopHoP 1582–1599: ? 1599–1603: Sir George Carey 1603–1606: Thomas Ridgeway, 1st Earl of Londonderry"Ridgeway, Thomas". Dictionary of National Biography. London: Smith, Elder & Co. 1885–1900. 1606–1622: ? 1622–1625: Sir Francis Blundell, 1st BaronetHoP 1625–1636: Francis Annesley, 1st Viscount ValentiaHoP 1636–?1638: Adam Loftus, 1st Viscount Loftus (died 1643) 1649–1660: James Standish (Parliament) 1660 (August)–1667: Arthur Annesley, 1st Earl of AngleseyHoP 1667–1670: George CarteretHoP 1670–1673: Francis Aungier, Baron Angier 1673–1674: Sir John Temple 1676–1682: Richard Jones, 1st Earl of RanelaghHoP 1682–1686: John PriceBritish History Online (also Receiver General) 1686–?1689: Thomas Keightley 1689–1692: William HarbordHoP 1692–1710: Thomas Coningsby, 1st Baron ConingsbyHoP 1710–1710 (September): John Annesley, 4th Earl of Anglesey 1710 (September)–1716: Arthur Annesley, 5th Earl of AngleseyHoP 1717 (April–May): Matthew Moreton, 1st Baron DucieHoP 1717–1720: Matthew Moreton, 1st Baron Ducie (jointly) ?1717–1734: Hugh Boscawen (jointly)HoP 1720–1723: Sir William St Quintin, 3rd Baronet (jointly)HoP 1724–1742: Richard Edgcumbe (jointly)HoP 1734–1746: Pattee Byng, 2nd Viscount Torrington (jointly)HoP 1742–1744: Henry Vane (jointly)HoP 1744–1757: George Cholmondeley, 3rd Earl of Cholmondeley (jointly)HoP 1746–1755: Sir William Yonge (jointly) 1755 (December)–1762 (December): Welbore Ellis (jointly)HoP 1757 (July)–1759: Thomas Potter (jointly)HoP 1760–1765: (jointly) Robert Nugent, 1st Earl Nugent (jointly)HoP 1762 (December)–1765 (July): Richard Rigby (jointly)HoP 1763–1767: James Oswald (jointly)HoP 1765 (December)–1766 (July): Lord George Sackville (jointly)HoP 1766 (April)–1770 (January): James Grenville (jointly)HoP 1766 (September)–1768 (October): Isaac Barré (jointly)HoP 1768 (January–June): Richard Rigby (jointly) 1768 (July)–1782 (March): (jointly) Robert Nugent, 1st Earl Nugent (jointly) 1769–1770: Charles Cornwallis, 1st Earl Cornwallis (jointly)HoP 1770–1772: George Edgcumbe (jointly)HoP 1770–1777: Welbore Ellis (jointly) 1773 (January)–1775 (October): Charles Jenkinson, 1st Earl of Liverpool (jointly)HoP 1775–1781: Henry Flood (jointly)HoP 1781–1789: Richard Boyle, 2nd Earl of Shannon 1782 (May–July): Lord Robert Spencer (jointly)HoP 1782–1784: Lord Charles Spencer (jointly)HoP 1783 (April–December) William Eden, 1st Baron Auckland (jointly)HoP 1784–1787: Thomas de Grey, 2nd Baron Walsingham (jointly)HoP 1784–1793: George Edgcumbe (jointly) 1787–1793: Lord Frederick Campbell (jointly)HoP

References

A Political Index to the Histories of Great Britain & Ireland (1806) Haydn's Book of Dignities (1894)