Sir William Nigel Paul Cash is a British politician who has served as a member of Parliament (MP) since 1984. A member of the Conservative Party, he was first elected for Stafford and then for Stone in Staffordshire in 1997. Cash is a prominent Eurosceptic. Following his tenth election victory in the 2019 general election, aged 79, Cash became the oldest sitting member of the House of Commons.
Cash was the founder of the Maastricht Referendum Campaign in the early 1990s, and is now the elected Chair of the House of Commons' European Scrutiny Committee. He has also served as a vice-president of the Eurosceptic pressure group Conservatives for Britain, and to this day is one of the strongest critics of the European Union from the Conservative Party. In June 2023, he announced his intention to stand down at the next general election.
Cash was appointed a Knight Bachelor in the 2014 Birthday Honours for political services. He was appointed to the Order of the Companions of Honour in Boris Johnson's resignation honours.