Wennington is a small village in the London Borough of Havering, in east London. It is situated 14.8 miles (23.8 km) east of Charing Cross. Wennington was an ancient parish in the county of Essex that was abolished for civil purposes in 1934. It is peripheral to London, forming a ribbon development extending from the eastern edge of the urban sprawl and surrounded by the Metropolitan Green Belt. Wennington was added to Hornchurch Urban District in 1934 and has formed part of Greater London since 1965.

The London Borough of Havering in East London, England, forms part of Outer London. It has a population of 259,552 inhabitants; the principal town is Romford, while other communities are Hornchurch, Upminster, Collier Row and Rainham. The borough is mainly suburban, with large areas of protected open space. Romford is a major retail and night time entertainment centre, and to the south the borough extends into the London Riverside redevelopment area of the Thames Gateway. The name Havering is a reference to the Royal Liberty of Havering which occupied the area for several centuries. The local authority is Havering London Borough Council. It is the easternmost London borough.