Overpool is a village at the foot of the Wirral Peninsula in the ceremonial county of Cheshire, England. It is a suburb of Ellesmere Port and, since 2009, part of the unitary authority of Cheshire West and Chester.
Until 1911 when it was absorbed into Ellesmere Port, Overpool was part of the parish of Eastham in the Wirral Hundred. The population was 89 in 1801, 72 in 1851 and 91 in 1901. Historically, there were three settlements or small villages - Poole, Over Poole and Nether Poole (or Netherpool). Of these, only Overpool remains as an identifiable settlement.
In the nationwide reorganization of municipalities of 1974, Ellesmere Port Urban District joined with Neston Urban District on the River Dee side of the peninsula to form a district municipality named the Borough of Ellesmere Port and Neston which existed until 2009 when it was replaced by the larger Cheshire West and Chester unitary authority.