Local elections were held in the United Kingdom in May 1977. The results were a major mid-term setback for the Labour government, and the Conservatives, the main opposition, comprehensively regained control of the Greater London Council with 64 seats against Labour's 28. Elections were also held in the county councils and in Northern Ireland.
The Conservative Party gained 1,293 seats, bringing their number of councillors to 12,370. The Labour Party lost 1,098 seats, leaving them with 7,115 councillors. The Liberal Party lost 163 seats, leaving them with 950 councillors.
Changes were as follows: