The 1940 Football League War Cup Final was contested by West Ham United and Blackburn Rovers. It was played on 8 June 1940 and kicked-off at 6.30pm despite fears that London would be bombed by the Luftwaffe. The wartime crowd included wounded members of the BEF recently evacuated from Dunkirk. West Ham won the tie 1–0; the only goal coming from Sam Small in the 34th minute when he followed up a parried shot from George Foreman.   
The trophy was presented to the winning team by A. V. Alexander, First Lord of the Admiralty.
As the match was played during wartime, no reception was held for the winning team. Some players went to the Boleyn public house on Green Street for a few pints whilst others returned immediately to their service units.