Electoral Reform Society

The Electoral Reform Society (ERS) is an independent campaigning organisation based in the United Kingdom which promotes electoral reform. It seeks to replace the first-past-the-post voting system with one of proportional representation, advocating the single transferable vote. It is the world's oldest operating organisation concerned with political and electoral reform.

Electoral Reform Society
Founded1884; 137 years ago (1884)
London, United Kingdom
TypeNon-governmental organisation
FocusDemocracy, electoral reform, elections
Area served
United Kingdom
MethodLobbying, research, innovation
Key people
AffiliationsProportional Representation Society of Ireland (1911–1922)
Formerly called
Proportional Representation Society