May 15 - Irish Oak (Irish Shipping) torpedoed and sunk by U-607, 700 miles west of Ireland. Crew rescued by Irish Plane 8 hours later.
June 2S.S. City of Bremen (Saorstat & Continental Steam Ship Company) bombed and sunk in the Bay of Biscay all 11 crew lost.
October 5 - In the largest manufacturing campaign in the history of the Irish Sugar Company, 700 employees at the Carlow Sugar Beet Factory will work in three shifts without pause for 18 weeks until all the 230,000 acres (930 km²) of beet is processed.