The 1993 Newbury by-election was triggered by the death of the Member of Parliament (MP) for Newbury, the Conservative Judith Chaplin. The by-election was held on 6 May 1993, and was won by David Rendel of the Liberal Democrats with a large swing of 28.4%, and well over twice as many votes as the Conservative candidate. As with the overwhelming majority of UK by-elections, turnout was lower than at the general election, falling from 83% to 71%.