List of Irish supercentenarians
This list includes Irish supercentenarians whose lifespans have been verified by an international body that specifically deals in longevity research, such as the Gerontology Research Group. There have been, including emigrants, 10 verified supercentenarians from Ireland. The oldest person ever to die in Ireland was Katherine Plunket at 111 years, 327 days. The oldest ever person born in Ireland was Kathleen Snavely, who died aged 113 years, 140 days in the United States.
Irish supercentenarians
Below is a list of the oldest people who were born on the island of Ireland.| Rank | Name | Sex | Birth date | Death date | Age | County of birth | Place of death or residence |
| 1 | Kathleen Snavely | F | 16 February 1902 | 6 July 2015 | Clare | United States | |
| 2 | Annie Scott | F | 15 March 1883 | 21 April 1996 | Tyrone | Scotland | |
| 3 | Henrietta Irwin | F | 27 May 1906 | 15 January 2019 | Antrim | Canada | |
| 4 | Katherine Plunket | F | 22 November 1820 | 14 October 1932 | Louth | Louth | |
| 5 | Margaret Dolan | F | 30 August 1893 | 2 December 2004 | Galway | Galway | |
| 6 | Jane Webster | F | 17 April 1906 | 31 October 2017 | Antrim | England | |
| 7 | Catherine Furey | F | 6 April 1893 | 30 November 2003 | Roscommon | United States | |
| 8 | Elizabeth Watkins | F | 10 March 1863 | 21 October 1973 | Antrim | Antrim | |
| 9 | Ellen Green | F | 19 July 1878 | 4 December 1988 | Antrim | Canada | |
| 10 | Mary Ellen Geaney | F | 2 January 1886 | 5 April 1996 | Cork | Cork | |
| 11 | Maud Nicholl | F | 3 July 1909 | 19 September 2019 | Antrim | Antrim | |
| 12 | Margaret Bly | F | 28 June 1894 | 4 August 2004 | Donegal | United States |