In the United Kingdom under the premiership of William Gladstone, the Representation of the People Act 1884 (48 & 49 Vict. c. 3), also known informally as the Third Reform Act, and the Redistribution Act of the following year were laws which further extended the suffrage in the UK after the Derby government's Reform Act 1867. Taken together, these measures extended the same voting qualifications as existed in the towns to the countryside, more than doubling the electorate in the counties, and essentially established the modern one member constituency as the normal pattern for parliamentary representation.
The bill was introduced by Gladstone on 28 February 1884. The Conservative-dominated House of Lords rejected the bill on 17 July but then passed it. It gained royal assent on 6 December of that year.