The Reform Act refers to a series of legislative changes in the United Kingdom aimed at improving the electoral system. The most notable is the Reform Act of 1832, which expanded the electorate by lowering property requirements, allowing more men to vote. It also redistributed parliamentary seats to better represent growing industrial cities. Subsequent Reform Acts, including those in 1867 and 1884, further extended voting rights and addressed issues of representation. These acts gradually moved towards a more democratic system, ultimately leading to universal suffrage in the 20th century, shaping modern British politics.