Sefton Metropolitan Borough Council elections are generally held three years out of every four, with a third of the council being elected each time. Sefton Metropolitan Borough Council, generally known as Sefton Council, is the local authority for the metropolitan borough of Sefton in Merseyside, England. Since the last boundary changes in 2004, 66 councillors have been elected from 22 wards.
A by-election in St. Oswald ward was held on 20 June 2024 following the death of Labour Councillor Paula Spencer, which had left the seat vacant during the year's local election period. The statement of persons nominated was released on 24 May 2024.
A by-election in Linacre was held on 4 July 2024 following the resignation of Labour councillor John Fairclough, the same day as the 2024 UK general election. The statement of persons nominated was released on 10 June 2024.