North Ockendon is the easternmost settlement of Greater London, England, and part of the London Borough of Havering. It is 18 miles (29 km) east-northeast of Central London and consists of a dispersed settlement within the Metropolitan Green Belt. It was historically an ancient parish in the county of Essex, which was abolished for civil purposes in 1936. North Ockendon is the only inhabited area in Greater London outside the M25 London Orbital Motorway. North Ockendon is north of South Ockendon, in Thurrock, Essex.

Greater London is the administrative area of London, England, which is coterminous with the London region. It contains 33 local government districts: the 32 London boroughs, which form a ceremonial county also called Greater London, and the City of London. The Greater London Authority is responsible for strategic local government across the region, and regular local government is the responsibility of the borough councils and the City of London Corporation. Greater London is bordered by the ceremonial counties of Hertfordshire to the north, Essex to the north-east, Kent to the south-east, Surrey to the south, and Berkshire and Buckinghamshire to the west.