| Hundred of West Derby | |
|---|---|
| Lancashire Hundred | |
 | |
 West Derby Hundred depicted in John Speed's 1610 map of Lancashire | |
| History | |
| • Created | 11th century |
| Subdivisions | |
| • Type | Parish(es) |
| • Units | Walton • Halsall • Aughton • Liverpool • Sefton • Altcar • Warrington • Wigan • Childwall • North Meols • Prescot • Winwick • Huyton • Ormskirk • Leigh |
The West Derby Hundred (also known as West Derbyshire) is one of the six subdivisions of the historic county of Lancashire, in northern England. Its name alludes to its judicial centre being the township of West Derby (the suffix -shire meaning the territory was appropriated to the prefixed settlement).
It covered the southwest of Lancashire, containing the ancient ecclesiastical parishes of Walton, Sefton, Childwall, Huyton, Halsall, Altcar, North Meols, Ormskirk, Aughton, Warrington, Prescot, Wigan, Leigh, Liverpool, and Winwick. It corresponds roughly to areas of Merseyside north of the River Mersey and also covered parts of modern West Lancashire Borough, Wigan borough, Warrington Borough and Halton Borough.