In England, directly elected mayors are directly elected executive political leaders of some local government bodies, usually either local authorities (councils) or combined authorities. Mayors of the latter may be informally referred to as "metro mayors" or "regionally devolved Mayors"
The first such post was the Mayor of London, created as the executive of the Greater London Authority in 2000 as part of a reform of the local government of Greater London. Since the Local Government Act 2000, all of the several hundred principal local councils in England and Wales have been required to review their executive arrangements.