The 2023 West Lancashire Borough Council election took place on 4 May 2023, to elect all 45 members of West Lancashire Borough Council in Lancashire, England. The council is usually elected in thirds, but the whole council was up for election in 2023 following changes to ward boundaries, which reduced the number of councillors from 54 to 45.
A parliamentary by-election in the constituency of the same name in February 2023 saw Labour's candidate Ashley Dalton elected on a 10% swing.
Prior to the election the council was under no overall control, being led by a Labour minority administration.
Following the results, the Labour Party won the council from no overall control.
The election in Rural South ward was delayed until 22nd June as a result of the death of one of the candidates.