3 January - William Joyce, alias Lord Haw Haw, is hanged in Wandsworth Prison for treason.
7 January - The Minister for Education, Tomás Ó Deirg, announces that because refugee children who arrived in Ireland during the war do not have a sufficient knowledge of the Irish language they cannot obtain the Leaving Certificate.
21 January - Work starts on a comprehensive Irish-English dictionary.
6 August - On the first anniversary of the Hiroshima bombing, Captain Bob Lewis , the co-pilot of the Enola Gay, the aircraft which dropped the bomb, arrives at Shannon Airport, completing his first flight as a civil aviation pilot.
22 November - Walt Disney arrives in Dublin. He has a meeting with the Folklore Commission to further his investigation of leprachauns for a forthcoming film.