Newham South was a parliamentary constituency in the London Borough of Newham, in east London.
It returned one Member of Parliament (MP) to the House of Commons of the Parliament of the United Kingdom.
The constituency shared boundaries with the Newham South electoral division for election of councillors to the Greater London Council at elections in 1973, 1977 and 1981.
The constituency consisted of the southern portion of the London Borough of Newham, the wards of Beckton, Bemersyde, Canning Town and Grange, Custom House and Silvertown, Hudsons, Ordnance, Plaistow, and South.
It included North Woolwich, which had previously been included in seats with the rest of Woolwich on the other side of the River Thames.