The 1926 Imperial Conference was the fifth Imperial Conference bringing together the prime ministers of the Dominions of the British Empire. It was held in London from 19 October to 23 November 1926. The conference was notable for producing the Balfour Declaration, which established the principle that the dominions are all equal in status, and "autonomous communities within the British Empire" not subordinate to the United Kingdom. The term "Commonwealth" was officially adopted to describe the community.

Imperial Conferences were periodic gatherings of government leaders from the self-governing colonies and dominions of the British Empire between 1887 and 1937, before the establishment of regular Meetings of Commonwealth Prime Ministers in 1944. They were held in 1887, 1894, 1897, 1902, 1907, 1911, 1921, 1923, 1926, 1930, 1932 and 1937.