| 14672 | Association of Baptist Churches in Ireland | | 1950-1960 | A box containing the following minute books and mate... | Irish Baptist Home and Foreign Mission |
| 14691 | Association of Baptist Churches in Ireland | | 1950-1984 | A box containing the following minute books and mate... | Irish Baptist Home and Foreign Mission |
| 14692 | Association of Baptist Churches in Ireland | | 1950-1958 | A box containing the following minute books and mate... | Irish Baptist Home and Foreign Mission |
| 16732 | Cashel, Ferns and Ossory Diocesan Archive (CoI) | | 1895-1916
1950-1960 | Donohill Church Account Books: 1895-1916 1950-1960. | Bolton Library Archive |
| 15009 | Catholic Girl Guides of Ireland | | 1950-1970 | Account Book, Rome Pilgrimage, 1950-1970. | |
| 15037 | Catholic Girl Guides of Ireland | | 1950-1970 | Bundle of Invoices of Equipment, c.1950-c.1970. | |
| 15077 | Catholic Girl Guides of Ireland | | 1950-1957 | 1 bound folder, letters entitled 'camp' toge... | |
| 16458 | Central Catholic Library | | 1950-1963 | Central Catholic Library, Minute Book of the Council... | |
| 6091 | Clare County Archives | | 1950-1954 | Clare County Council Minute Book, 11 January 1950 - ... | Clare County Council |
| 6098 | Clare County Archives | | 1950-1951 | Agenda Book, 19 August 1950 - 5 December 1951. | Clare County Council |
| 6122 | Clare County Archives | | 1950-1960 | Box of Legal Material c.1950s-1960s. | |
| 23816 | Cork City and County Archives | | 1900-1910
1950-1970 | Rate Valuation Books 1900-1910 & 1950-1970 | Cork City Council Records - Miscellaneous |
| 16945 | Cork Folklore Project | | 1950-2019 | Interviews (conducted between Apr. 2017-Sep. 2018):C... | HSE Orthopaedic Hospital Oral History Project (d'Orthopaedic) |
| 3250 | Dún Laoghaire-Rathdown County Council | LA5/ | 1950-1973 | Manager's Orders relating to Staff:193 1 June 19... | Dún Laoghaire Borough |
| 210 | Irish Film Archive | Holy Ghost Fathers/1950s/ | 1950-1959 | Holy Ghost Fathers/1950s/Missionary Work: A promoti... | |
| 238 | Irish Film Archive | Murphy's Stout commercial | 1950-1999 | 'Murphy's Stout commercial / It's a diff... | |
| 239 | Irish Film Archive | Twirl Commercial/ You can | 1950-1999 | 'Twirl Commercial/ You can't stop the taste': Comme... | |
| 2259 | Irish Theatre Archive | ITA/160 | 1950-1969 | Matthew Murtagh's collection of mainly Victorian... | |
| 12332 | Irish Traditional Music Archive/ Taisce Ceoil Dúchais Éireann | | 1950-1999 | There are a number of special collections within thi... | |
| 20799 | Kilmore Diocesan Archives (RC) | | 1912-1938
1950-1971 | Schools and Education I General:1: Numbers of pupils... | Kilmore Diocesan Archives |
| 20806 | Kilmore Diocesan Archives (RC) | Bishops, 1625-1910 | 1950-1972
1863
1944 | Bishop Austin Quinn, 1950-1972: General Corresponden... | Kilmore Diocesan Archives |
| 20942 | King's Hospital School | 17-32 | 1950-1960 | 27 Visiting Governor's Report Book, 1950 - 1960. | King's Hospital Records |
| 21160 | King's Hospital School | 232-236A | 1950-1965 | 232A Account Book, stationery, 1950 - 1965. | King's Hospital Records |
| 21191 | King's Hospital School | 254-281 | 1950-1969 | 259 Chemist's Account Book, 1950 - 1969. | King's Hospital Records |
| 14480 | Laois Local Studies | | 1950-1975 | Images documenting life in Laois and particularly Po... | Redmond Photographic Collection |
| 21679 | Laois Local Studies | | 1950-1952 | Home Assistance Officer Blind Welfare Scheme:308. 19... | Laois Local Authority Records |
| 22334 | Leitrim Local Studies Department | | 1944-1949
1950-1958 | Misc. 34. Swanlinbar Session Books, October 1944 - S... | Miscellaneous Records, Leitrim |
| 20359 | Meath Local Studies and Family History Department | UDC/I/G/ | 1950-1952 | Gilsenan's Field, Flower Hill, Financial records: 19... | Navan Urban District Council |
| 3836 | National Archives of Ireland | E225/50/ | 1950-1956 | Department of Industry and Commerce.E225 File Series... | Department of Industry and Commerce |
| 3855 | National Archives of Ireland | A7/84/50 | 1950-1956 | Department of the Marine. A7 Series: A7/84/50 Irish ... | Department of the Marine |
| 4659 | National Archives of Ireland | 305/57/112/10/6 | 1950-1953 | Technical assistance project, number 44/7. Poultry d... | Department of Foreign Affairs |
| 4662 | National Archives of Ireland | 307/44/7 | 1950-1957 | Mary Wallace, late of Buenos Aires, regarding proper... | Department of Foreign Affairs |
| 11324 | National Archives of Ireland | 320/110 | 1950-1951 | Mrs McCloskey, Dublin, importation of rug, 1950-1951... | Department of Foreign Affairs |
| 11407 | National Archives of Ireland | A8/302 | 1950-1951 | Dublin: St Kevin's Institution, complaint relating t... | Department of Health |
| 15260 | National Archives of Ireland | 2002/74 | 1950-1959 | Comhairle Sláinte: Health Hints in the Home. | Selection of Private Accessions, 1980-2002 |
| 11181 | National Gallery of Ireland Library | AB121A | 1950-1965
1967-1969 | Folder including Audit Account 1967-1969, with lette... | Watercolour Society of Ireland |
| 9198 | National Library of Ireland | Ms15340 | c1950-1954 | Letters and other documents from the papers of Dr Do... | |
| 402 | National Maternity Hospital | NMH/42 | 1950-1957 | Corrspondence relating to the establishment of the n... | |
| 19777 | North Down Museum | | c.1950-c.1989 | Includes photographs of, for example:Family groups, ... | D.J. Neill Photographic Collection |
| 7332 | Public Record Office of Northern Ireland | D/3732 | c.1950-1976 | Papers of the late Miss M.A. McNeill mainly relating... | |
| 7407 | Public Record Office of Northern Ireland | D/3953 | 1950-1961 | File of East Down Women Unionist Association papers,... | |
| 8448 | Public Record Office of Northern Ireland | T/2715/1-2 | 1950-c.1960 | Pedigree of the Crawford family, Crawfordsburn, Coun... | |
| 22067 | Representative Church Body Library | B5 | 1950-1967 | St Nicholas' Parish, Financial Register, St Nich... | St Fin Barre's Cathedral Cork Archive |
| 23548 | Representative Church Body Library | RCBL MS 749 | 1950-1953 | General Council Book, 16 November 1950-c.1953, many ... | Mothers' Union Collection |
| 22446 | Royal Victoria Hospital, Belfast | | 1950-1993 | Royal Victoria Hospital League of Nurses Annual Repo... | |
| 22487 | Royal Victoria Hospital, Belfast | | 1950-1987 | 9 volumes of Royal Victoria Hospital Finance Committ... | |
| 22665 | Services Industrial Professional Technical Union (SIPTU) | | 1950-1959 | Cavan Branch:Collectors Book, 1958-1959Branch regist... | Irish Transport and General Workers Union |
| 22045 | St Dympna's Hospital, Carlow | IE DA SDH | 1950-1972 | Extra Diet Check Book:May 1957-September 1969Septemb... | St Dympna's Psychiatric Hospital, Carlow |
| 18613 | Trinity College Dublin, Manuscripts and Archives Department | TCD MISC photocopy 182 | 1950-1959 | Typescript transcription of part of MC Lehman's jour... | Memoir of Mahrea Lehman |
| 9974 | UCC College Archives | SecOfile/3598/Box 25/8 | 1950-1953 | File relating to Meath County Council scholarships, ... | Secretary's Office |
| 9795 | UCC Special Collections & Archives | BL/EP/G/506 | 1950-1955 | Files relating to Estate administration kept by Majo... | Grehan Estate Collection |
| 21979 | UCC Special Collections & Archives | U175 | 1950-1952 | Box 29 contains receipts and a Rent Ledger of Bernar... | |
| 18371 | University of Galway Archives | A23 | 1950-1989 | Forms completed and other research material associat... | Dialect Survey of Ireland |
| 17274 | University of Limerick Special Collections and Archives | | 1950- | The National Dance Archives of Ireland (NDAI) includ... | National Dance Archives of Ireland |
| 4598 | Waterford City Archives | | 1950-1951 | X Ray Receipts Book, 24 October 1950-7 September 195... | Waterford City and County Infirmary |
| 23310 | Waterford City Archives | P30/ | 1950-1955 | 17: Fuel allowance report book, containing records o... | Michael Walsh Asylum |
| 23313 | Waterford City Archives | P30/ | 1950-1955 | 20: Electricity Supply Board payments book noting co... | Michael Walsh Asylum |
| 19246 | Westmeath County Archives Department | | 1950-1967 | Grant Application Registers:1950-1967 | Westmeath County Council |
| 19264 | Westmeath County Archives Department | | 1950-1954 | Westmeath County Council Seed Supply Scheme:29 Novem... | Westmeath County Council |
| 19268 | Westmeath County Archives Department | | 1950-1956 | Westmeath County Council, documentation regarding su... | Westmeath County Council |
| 19273 | Westmeath County Archives Department | | 1950-1971 | Register of Scholarships in Secondary, Vocational an... | Westmeath County Council |
| 19423 | Westmeath County Archives Department | | 1950-1967 | Schedule of Uncollected Rates (rates defaulters): [i... | Athlone Local Authority Records |