The Liberal government of the United Kingdom of Great Britain and Ireland that began in 1905 and ended in 1915 consisted of two ministries: the first led by Henry Campbell-Bannerman and the final three by H. H. Asquith.

A coalition of the Conservative and Liberal Unionist parties took power in the United Kingdom shortly before the 1895 general election. Conservative leader Lord Salisbury was appointed Prime Minister and his nephew, Arthur Balfour, became Leader of the House of Commons, but various major posts went to the Liberal Unionists, most notably the Leader of the House of Lords, the Liberal Unionist Duke of Devonshire, who was made Lord President, and his colleague in the Commons, Joseph Chamberlain, who became Colonial Secretary. It was this government which would conduct the Second Boer War from 1899–1902, which helped them to win a landslide victory at the 1900 general election.