The 1998 Greater London Authority referendum was held in Greater London on 7 May 1998. The referendum asked whether there was support for creating a Greater London Authority composed of a directly elected Mayor of London and a London Assembly to scrutinise the Mayor's actions. Voter turnout was low, at just 34.1%. The referendum was held under the Greater London Authority (Referendum) Act 1998 provisions. Polling day coincided with the 1998 London local elections.