Following the vote in the House of Commons on 19 April 2017 a UK Parliamentary General Election was held on Thursday 8 June 2017.  The Southampton area is split into three Parliamentary Constituencies:

Southampton Itchen Constituency is made up of Bargate, Bitterne, Bitterne Park, Harefield, Peartree, Sholing and Woolston wards.  The Acting Returning Officer for this constituency is Mark Heath and the election is run through Southampton City Council.

Southampton Test Constituency is made up of Bevois, Coxford, Freemantle, Millbrook, Portswood, Redbridge and Shirley wards.  The Acting Returning Officer for this constituency is Mark Heath and the election is run through Southampton City Council.

The wards of Bassett and Swaythling are part of the Romsey and Southampton North Constituency.  The Acting Returning Officer for this constituency is Roger Tetstall and the election is run through Test Valley Borough Council.