[1] Five candidates were successfully nominated to stand in the deputy leadership election: Ben Bradshaw, Stella Creasy, Angela Eagle, Caroline Flint, and Tom Watson.

This meant that, for example, members of Labour-affiliated trade unions needed to register as Labour supporters in order to vote.

In order to stand, candidates needed to have been nominated by at least 15% of the Parliamentary Labour Party (PLP) – 35 MPs.

A meeting of Labour's National Executive Committee took place on 13 May 2015 to set a timetable and procedure for the two elections.

Nominations for candidates by MPs were:[15] Before dropping out of the race on 17 June, Rushanara Ali had the following 24 nominations: Roberta Blackman-Woods, Paul Blomfield, Lyn Brown, Dawn Butler, Julie Cooper, Jeremy Corbyn, Clive Efford, Fabian Hamilton, Helen Hayes, Tristram Hunt, Rupa Huq, Sadiq Khan, Seema Malhotra, John Mann, John McDonnell, Chi Onwurah, Teresa Pearce, Matthew Pennycook, Yasmin Qureshi, Dennis Skinner, Andy Slaughter, Keir Starmer, Chuka Umunna[15] Before dropping out of the race on 11 June, John Healey had the following 20 nominations: Sarah Champion, Clive Efford, Holly Lynch, Kevin Barron, Andy Slaughter, Clive Betts, Ruth Cadbury, Simon Danczuk, Louise Ellman, Fabian Hamilton, Harry Harpham, Madeleine Moon, Paula Sherriff, Derek Twigg, Paul Blomfield, Ivan Lewis, Gordon Marsden, Chris Leslie, Teresa Pearce[17] Source:[2]