The Newbury by-election, in West Berkshire, England, was held on 6 May 1993 after Conservative Member of Parliament (MP) Judith Chaplin died, after only being elected the previous year. It was won by David Rendel of the Liberal Democrats with an impressive swing of 28.4%, and well over twice as many votes as the Conservative candidate. However, as with other by-elections, turnout was lower than at the general election at 71.3%.