Custom House is an area in the London Borough of Newham, in East London, England.

The London Borough of Newham is a London borough created in 1965 by the London Government Act 1963. It covers an area previously administered by the Essex county boroughs of West Ham and East Ham, authorities that were both abolished by the same act. The name Newham reflects its creation and combines the compass points of the old borough names. Situated in the Inner London part of East London, Newham has a population of 387,576, which is the fourth highest of the London boroughs and also makes it the 26th most populous district in England. The local authority is Newham London Borough Council.