The
Railways Act 1921 (c. 55), also known as the
Grouping Act, was an
Act of Parliament enacted by the British government of
David Lloyd George intended to stem the losses being made by many of the country's 120 railway companies, move the railways away from internal competition, and to retain some of the benefits which the country had derived from a Government-controlled railway during and after the
Great War of 1914-1918.