| 13092 | Armagh County Museum | 1935/402 | 1827
1828 | 'The annual report of the association for the relief... | |
| 19126 | Armagh Robinson Library | Volume 8 | 1826-1827 | A list of all those christened, married or buried at... | Primate J.G. Beresford Papers |
| 19131 | Armagh Robinson Library | Volume 8 | 1827 | A list of names of all persons christened, married a... | Primate J.G. Beresford Papers |
| 19136 | Armagh Robinson Library | Volume 9 | 1827 | A register book of marriages in Termonfekin Church f... | Primate J.G. Beresford Papers |
| 4248 | Church of Ireland Centre | Ms319-323 | 1826-1827 | Payments made to teachers under the Cork Committee o... | Records of the Society for Promoting the Education of the Poor of Ireland |
| 4255 | Church of Ireland Centre | Ms564 | 1827 | Lease between Mrs H. Richardson, Moy, County Tyrone,... | Records of the Society for Promoting the Education of the Poor of Ireland |
| 4256 | Church of Ireland Centre | Ms602 | 1827 | Lease between R. Martin, Ross, County Wexford, and W... | Records of the Society for Promoting the Education of the Poor of Ireland |
| 4279 | Church of Ireland Centre | Serial No7 | 1827 | General Correspondence, III:Bishop of Ferns to J.D. ... | Records of the Society for Promoting the Education of the Poor of Ireland |
| 4301 | Church of Ireland Centre | Box 27 | 1827-1847 | Reports of Various Societies: Serial No 22 First Rep... | Records of the Society for Promoting the Education of the Poor of Ireland |
| 22924 | Delany Archive | Box Bp/07 File JKL.SER/ | 1827 | Sermon Materials:c.67 items. Includes 07 and 08, A p... | Papers of Dr James Doyle, Bishop of Kildare & Leighlin |
| 23784 | Delany Archive | Box Bp.04 File JKL. 1827/ | 1827 | 35: 8 March 1827 Rev. M. Macmahon, Suncroft to Mrs A... | Papers of Dr James Doyle, Bishop of Kildare & Leighlin |
| 23785 | Delany Archive | Box Bp.04 File JKL. 1827/ | 1827 | 43: 17 May 1827 G. Cosgrove, Nutgrove, Clough to Doy... | Papers of Dr James Doyle, Bishop of Kildare & Leighlin |
| 23786 | Delany Archive | Box Bp.04 File JKL. 1827/ | 1827 | 48: 22 June 1827 Doyle, Stradbally, to Sr Clare, Car... | Papers of Dr James Doyle, Bishop of Kildare & Leighlin |
| 23787 | Delany Archive | Box Bp.04 File JKL. 1827/ | 1827 | 53: 5 September 1827 Doyle Ballina, to Miss C. Hardi... | Papers of Dr James Doyle, Bishop of Kildare & Leighlin |
| 23788 | Delany Archive | Box Bp.04 File JKL. 1827/ | 1827 | 65: 23 November 1827 Maria Forde Kilcullen to Doyle.... | Papers of Dr James Doyle, Bishop of Kildare & Leighlin |
| 23789 | Delany Archive | Box Bp.04 File JKL. 1827/ | 1827 | 75: 14 December 1827 Alicia J. Dunne, Ballymanus to ... | Papers of Dr James Doyle, Bishop of Kildare & Leighlin |
| 21911 | Galway Diocesan Archives (RC) | | 1827 | Box 11 Register of births and marriages for Moyculle... | |
| 5064 | Irish Architectural Archive | 97/84/Box 11 | 1793-1827 | Bundle of documents containing references to Louisa ... | Castletown Papers |
| 5107 | Irish Architectural Archive | 97/84/Box 73 | 1691-1827 | Legal documents including deeds with references to S... | Castletown Papers |
| 2 | Irish Dominican Congregation Archives | A11 | 1808-1827 | Channel Row, Clontarf, Cabra: Account Book, number 8... | Dominican Archives, Cabra |
| 3 | Irish Dominican Congregation Archives | A12 | 1827-1842 | Channel Row, Cabra: Account Book, number 9, 1827 - 1... | Dominican Archives, Cabra |
| 22229 | Irish Jesuit Archives | MACE/MCAU/ | 1827-1841 | 61 Notebook with note on cover 'Sisters of Mercy 182... | John MacErlean SJ research on Mother Catherine McAuley (1778-1841). |
| 5564 | Irish Print Union | | 1827-1962 | Irish Graphical Society:Minute Books: Council and Co... | |
| 21729 | Kerry Diocesan Archives (RC) | E87 | 1838-1840
1827
1832 | Memoranda regarding hospital, 1827, 1832, 1838-1840. | Bishop Cornelius Egan, 1825 - 1856 |
| 21801 | Kerry Diocesan Archives (RC) | DOS/23 | 1825-1827 | Extract from Education Reports, 1825 -1827, regardin... | Bishop Diarmuid O'Suilleabhain, 1985-1994 |
| 21007 | King's Hospital School | 83-99 | 1827-1828 | 91 Agents Accounts, 1827 - 1828. | King's Hospital Records |
| 21009 | King's Hospital School | 83-99 | 1827-1828 | 93 Draft Account, 1827 - 1828. | King's Hospital Records |
| 21017 | King's Hospital School | 100-115 | 1814-1827 | 115 Monthly Accounts, 1814 - 1827. | King's Hospital Records |
| 21038 | King's Hospital School | 116-130 | 1823-1827 | 120A Bread Accounts, 1823-1827. | King's Hospital Records |
| 21146 | King's Hospital School | 232-236A | 1738-1827 | Mercer's School: 225 Mercer's School Mercer's Accoun... | King's Hospital Records |
| 5001 | Maynooth University and St Patrick's College, Maynooth | Ms Murphy 73 | 1827 | Keating's Eochair-sciath an Aifrinn, Parliament na m... | |
| 20288 | Meath Local Studies and Family History Department | Box A/ | 1827 | 21 Letter to Arthur Pollock regarding land received,... | Mountainstown Documents |
| 4748 | National Archives of Ireland | 1028/3 | 1827-1906 | Committee Minutes: November 1827 - January 1842, inc... | Sick and Indigent Roomkeepers Society |
| 4958 | National Archives of Ireland | 2B/43/25 | 1819-1827 | Account on pages 351-389 of the lands of the nunnery... | Quit Rent Office |
| 8837 | National Archives of Ireland | SOC/2835/1 | 1827 | State of County Clare: Chief Constable, John Read Bi... | State of the Country Papers |
| 8929 | National Archives of Ireland | D23464 | 1827 | Deed of settlement by James Lenigan and Eleanor Fran... | Lenigan-Evans Papers |
| 8930 | National Archives of Ireland | D23466 | 1827 | Copy Lease for lives of Ballycurry, Lady Caroline Da... | Lenigan-Evans Papers |
| 11518 | National Archives of Ireland | | 1827-1843 | Letters to Isabella Rossiter, September 1827 - Augus... | Byrne Papers |
| 15378 | National Archives of Ireland | 99/56/10/19/2 | 1827 | Papers relating to King's County. Settlement on ... | Family and estate records. 1611-1948 |
| 1005 | National Library of Ireland | Ms12982 | 1827 | Ledger of accounts of tenants and workers on the Pau... | |
| 1007 | National Library of Ireland | Mss12990-12991 | 1827-1842 | Journal recording monies received for William Gun Pa... | |
| 1516 | National Library of Ireland | Ms2194 | 1827 | A journal of a tour from Kilkenny into Wexford and W... | |
| 2016 | National Library of Ireland | Ms8123 | 1804-1827 | Miscellaneous letters includes letters of Rev. P J P... | Plunkett Papers |
| 2029 | National Library of Ireland | Ms8334 | 1818-1827 | Miscellaneous papers which include copies of a marri... | Wade Papers |
| 2309 | National Library of Ireland | Ms4805 | 1827-1846 | Notebook of Caroline Hamilton of Hamwood, County Mea... | |
| 2428 | National Library of Ireland | Ms1602 | c1827 | Commonplace Book of Caroline Otway, c1827. | |
| 2447 | National Library of Ireland | Ms12927 | 1827-1828 | Diary of Marianna Paul, in Bath and London, 1827-182... | |
| 2740 | National Library of Ireland | Ms20911 | c1827 | Engraved portrait and two Alpine sketches by Charlot... | Bruce Papers |
| 2757 | National Library of Ireland | Ms20967 | 1827-1859 | Three letters to, and concerning, Kate D'Alton, 1827... | D'Alton Papers |
| 2927 | National Library of Ireland | Ms8656 | 1827-1864 | Miscellaneous letters, 1827-1864. These include lett... | William Smith O'Brien Papers |
| 3043 | National Library of Ireland | Ms9941 | 1803-1827 | Rent Ledger of the estate of Stewart Weldon in the A... | Weldon Papers |
| 3070 | National Library of Ireland | Ms10174 | 1787-1827 | Letters to Sir Richard Musgrave and Lucy Musgrave, 1... | Ussher Papers |
| 3511 | National Library of Ireland | Ms11054 | 1797-1827 | Letters and other documents including letters of J H... | Ormonde Papers |
| 3621 | National Library of Ireland | Mss12768-12788 | 1814-1827 | Eleven rentals of the estates of George Putland, Cou... | |
| 6915 | National Library of Ireland | Ms18995 | 1827-1847 | Five letters from Maria Edgeworth to Mrs Harriet D C... | |
| 9067 | National Library of Ireland | Ms14082 | 1827-1858 | Account Book belonging to Edward Symes Bayly, mostly... | |
| 9150 | National Library of Ireland | Ms14866 | 1826-1827 | Personal Account Book of Mrs Lewis Johnston and her ... | Inchiquin Papers |
| 9634 | National Library of Ireland | Ms27394 | 1826-1827 | Letters relating to business and social matters from... | O'Bryne Papers |
| 9680 | National Library of Ireland | Ms29808(2-3) | 1826-1827 | Rent Rolls of the estate of F A Prittie, May-Novemb... | Dunalley Papers |
| 9686 | National Library of Ireland | Ms27210 | 1816-1827 | Letters from Olivia Bellew to her son Michael Dillon... | Bellew Papers |
| 9688 | National Library of Ireland | Ms27237 | c1826-1827 | Eight letters from Olivia Bellew to her son, Michael... | Bellew Papers |
| 10099 | National Library of Ireland | Mss16397-16398 | 1810-1827 | Two Rent Ledgers of the estates of Sir Robert Hodson... | Hodson Papers |
| 10720 | National Library of Ireland | Mss19585-19608 | 1827-1840 | Rentals and accounts of the estates of Robert Dillon... | Clonbrock Papers |
| 10787 | National Library of Ireland | Ms20627 | 1827-1850 | Letters to and by Michael Studdert, Rehy Park, Kilru... | Studdert Papers |
| 11063 | National Library of Ireland | Ms19152 | 1827-1836 | Wages Book of James Martin, Ross, County Galway, 182... | |
| 1807 | Public Record Office of Northern Ireland | D/1995 | 1809-1827 | Diary of Mary A. Folliot, Boyle, County Roscommon, w... | |
| 1821 | Public Record Office of Northern Ireland | D/2028 | 1645-1827 | Genealogical notes relating to the McMullen family o... | |
| 6676 | Public Record Office of Northern Ireland | D/1888/2 | 1827 | Printed 11 page report on the murder trial of Anne a... | |
| 6730 | Public Record Office of Northern Ireland | D/207/ | 1697-1827 | D/207/23/101-114; D/207/36/ Petition and letters abo... | Foster-Massereene Papers |
| 7078 | Public Record Office of Northern Ireland | D/2716 | 1809-1827 | 6 letters of Colonel James Kearney, Dublin, his wife... | |
| 7470 | Public Record Office of Northern Ireland | D/4125 | 1827-1849 | c.100 documents of Samuel Gordon, an employee of the... | |
| 2266 | RCSI Heritage Collections | Arch/8/D/1-15;E/1-13 | 1827-1934 | Copy Letter Books of the Council of the Royal Colleg... | |
| 485 | Religious Society of Friends in Ireland Historical Library | Portfolio 8C | 1740-1827 | Letters of John Conran, 1740-1827, 1048 items: Corr... | Handlists/Portfolio |
| 581 | Religious Society of Friends in Ireland Historical Library | YM/B10 | 1827-1854 | Women's Meeting: Epistles between Dublin, London and... | Yearly Meetings |
| 775 | Religious Society of Friends in Ireland Historical Library | QMIII/B4/Reel4 | 1827-1854 | Women's Meeting: Minutes of Ulster Quarterly Women's... | Ulster Quarterly Meetings |
| 1332 | Religious Society of Friends in Ireland Historical Library | MMV/K1-3 | 1682-1693
1755-1795
1798-1827
1865-1887 | Removals: MMV/K1 Removal Certificates, 1755-1795; W... | Mountmellick Monthly Monthly Meetings |
| 3563 | Religious Society of Friends in Ireland Historical Library | LGM/3/2B/Reel 29A | 1827-1838 | Women's Minutes, Lurgan Monthly Meeting, 1827-1838. ... | |
| 4137 | Religious Society of Friends in Ireland Historical Library | Deed Box XIII | 1827 | Jane Wood, Townsend Street, Dublin, will, 1827. | Deeds |
| 4192 | Religious Society of Friends in Ireland Historical Library | Deed Box VII/Folder 8:3 | 1827 | Elizabeth Harris, daughter of Henry Harris, County D... | Deeds |
| 23700 | Representative Church Body Library | | 1827-1939 | Box 23 Miscellaneous bound volumes, 1827-1939. | Mrs Smyly's Homes |
| 2378 | Royal Irish Academy | | 1827 | Transactions of the Royal Irish Academy, volume xvi:... | L.C. Beaufort |
| 13001 | Sligo Archives Service | S./R. | 1671-1827 | Rentals of the King-Kingston estates, 1671, 1697 and... | King Estate |
| 13093 | Tipperary Museum of Hidden History | AQNO1995.459 | 1827 | Summons, rent arrears, Catherine Lonergan, Clonmel, ... | |
| 13843 | Tipperary Museum of Hidden History | AQNO1995.462 | c1827 | Note relating to Catherine Lonergan, Clonmel propert... | |
| 10187 | Trinity College Dublin, Manuscripts and Archives Department | TCDMs3488 | 1819-1827 | Commonplace Book of poems and meditations, 1819-1827... | |
| 10413 | Trinity College Dublin, Manuscripts and Archives Department | TCDMs4989 | 1827-1830 | Album of poems and drawings kept for W E Forster, as... | Arnold-Forster |
| 10431 | Trinity College Dublin, Manuscripts and Archives Department | TCDMs10047/25 | 1813-1827 | Correspondence of Helena Perceval, later Graves, wit... | Graves Papers |
| 11221 | Trinity College Dublin, Manuscripts and Archives Department | V/247-248 | 1827 | Travel journal of Lady Charlotte A Stopford, 1827. ... | Courtown Papers |
| 19318 | Westmeath County Archives Department | | 1827 | 137 The Right Honourable The Countess Lanesborough ... | Howard Bury Papers |