The Norway Debate, sometimes called the Narvik Debate, was a momentous debate in the British House of Commons from 7 to 9 May 1940, during the Second World War. The official title of the debate, as held in the Hansard parliamentary archive, is Conduct of the War. The debate was initiated by an adjournment motion enabling the Commons to freely discuss the progress of the Norwegian campaign. The debate quickly brought to a head widespread dissatisfaction with the conduct of the war by Neville Chamberlain's government.

Arthur Neville Chamberlain was a British politician who served as Prime Minister of the United Kingdom from May 1937 to May 1940 and Leader of the Conservative Party from May 1937 to October 1940. He is best known for his foreign policy of appeasement, and in particular for his signing of the Munich Agreement on 30 September 1938, ceding the German-speaking Sudetenland region of Czechoslovakia to Nazi Germany led by Adolf Hitler. Following the invasion of Poland on 1 September 1939, which marked the beginning of the Second World War, Chamberlain announced the declaration of war on Germany two days later and led the United Kingdom through the first eight months of the war until his resignation as prime minister on 10 May 1940.