Little Altcar is a village and civil parish in the Metropolitan Borough of Sefton on Merseyside, within the boundaries of the historic county of Lancashire and on the West Lancashire Coastal Plain of England.

Sefton is also a constituent part of the Liverpool City Region Combined Authority.

The civil parish now called Little Altcar was created in 1974 as a result of the Local Government Act 1972, which split the former parish of Altcar between Lancashire and the new metropolitan county of Merseyside.

For elections to Sefton Council the village is part of Ravenmeols ward which has three councillors.

As a result of boundary revisions for the 2010 general election the Crosby constituency was abolished with its northern parts, including Little Altcar, being merged with the Eastern parts of Sefton that were formerly part of the Knowsley North and Sefton East constituency, to form the new constituency of Sefton Central, which is currently represented by the Labour Party MP Bill Esterson.