Notional results for a UK general election on 5 May 2005 London, England - Elections contested by Labour
Figures presented for Labour include those candidates certified by both the Labour and the Co-operative parties.
| Constituency | Electorate | Turnout | Votes | Vote share | Position |
| Barking | 76,437 | 48.2% | 18,293 | 49.6% | 1st |
| Battersea | 69,037 | 59.2% | 16,615 | 40.7% | 1st |
| Beckenham | 64,076 | 65.3% | 8,089 | 19.3% | 2nd |
| Bermondsey and Old Southwark | 73,944 | 48.8% | 11,408 | 31.6% | 2nd |
| Bethnal Green and Bow | 74,500 | 51.5% | 13,211 | 34.4% | 2nd |
| Bexleyheath and Crayford | 64,804 | 64.7% | 14,330 | 34.2% | 2nd |
| Brent Central | 70,763 | 55.5% | 19,684 | 50.1% | 1st |
| Brentford and Isleworth | 82,975 | 52.8% | 17,092 | 39.0% | 1st |
| Brent North | 75,338 | 58.5% | 21,751 | 49.4% | 1st |
| Bromley and Chislehurst | 63,889 | 62.7% | 9,788 | 24.4% | 2nd |
| Camberwell and Peckham | 74,564 | 52.0% | 24,529 | 63.3% | 1st |
| Carshalton and Wallington | 64,989 | 64.3% | 7,234 | 17.3% | 3rd |
| Chelsea and Fulham | 65,436 | 52.6% | 8,750 | 25.4% | 2nd |
| Chingford and Woodford Green | 61,386 | 63.0% | 9,914 | 25.7% | 2nd |
| Chipping Barnet | 72,415 | 62.7% | 15,368 | 33.8% | 2nd |
| Cities of London and Westminster | 62,596 | 51.2% | 8,097 | 25.3% | 2nd |
| Croydon Central | 75,842 | 60.1% | 18,745 | 41.1% | 1st |
| Croydon North | 85,838 | 52.7% | 24,251 | 53.6% | 1st |
| Croydon South | 80,253 | 63.4% | 12,250 | 24.1% | 2nd |
| Dagenham and Rainham | 71,497 | 56.8% | 19,964 | 49.2% | 1st |
| Dulwich and West Norwood | 69,879 | 56.9% | 17,590 | 44.2% | 1st |
| Ealing Central and Acton | 69,255 | 56.0% | 12,944 | 33.4% | 1st |
| Ealing North | 72,567 | 60.2% | 20,483 | 46.9% | 1st |
| Ealing, Southall | 62,389 | 55.0% | 19,634 | 57.3% | 1st |
| East Ham | 86,689 | 47.6% | 22,109 | 53.6% | 1st |
| Edmonton | 63,352 | 57.5% | 20,357 | 55.9% | 1st |
| Eltham | 65,329 | 58.5% | 16,135 | 42.2% | 1st |
| Enfield North | 66,014 | 60.3% | 16,230 | 40.8% | 2nd |
| Enfield, Southgate | 65,275 | 63.5% | 17,007 | 41.0% | 2nd |
| Erith and Thamesmead | 70,422 | 53.7% | 19,890 | 52.6% | 1st |
| Feltham and Heston | 82,442 | 47.9% | 18,978 | 48.1% | 1st |
| Finchley and Golders Green | 66,793 | 62.8% | 16,398 | 39.1% | 2nd |
| Greenwich and Woolwich | 66,703 | 53.2% | 18,636 | 52.5% | 1st |
| Hackney North and Stoke Newington | 62,610 | 49.4% | 15,138 | 49.0% | 1st |
| Hackney South and Shoreditch | 59,801 | 51.3% | 16,178 | 52.7% | 1st |
| Hammersmith | 74,336 | 58.6% | 18,463 | 42.4% | 1st |
| Hampstead and Kilburn | 74,635 | 55.8% | 15,138 | 36.3% | 1st |
| Harrow East | 69,511 | 61.3% | 19,366 | 45.5% | 1st |
| Harrow West | 65,896 | 64.4% | 20,622 | 48.6% | 1st |
| Hayes and Harlington | 66,794 | 55.3% | 20,844 | 56.4% | 1st |
| Hendon | 68,100 | 58.9% | 18,101 | 45.2% | 1st |
| Holborn and St Pancras | 82,756 | 53.2% | 19,872 | 45.1% | 1st |
| Hornchurch and Upminster | 77,760 | 63.3% | 15,317 | 31.1% | 2nd |
| Hornsey and Wood Green | 76,630 | 61.8% | 18,117 | 38.3% | 2nd |
| Ilford North | 68,570 | 61.1% | 16,614 | 39.6% | 2nd |
| Ilford South | 79,646 | 53.6% | 20,856 | 48.9% | 1st |
| Islington North | 58,428 | 53.9% | 16,118 | 51.2% | 1st |
| Islington South and Finsbury | 57,748 | 53.6% | 12,345 | 39.9% | 1st |
| Kensington | 62,001 | 51.8% | 9,538 | 29.7% | 2nd |
| Kingston and Surbiton | 74,102 | 67.7% | 6,610 | 13.2% | 3rd |
| Lewisham, Deptford | 68,350 | 50.9% | 19,245 | 55.4% | 1st |
| Lewisham East | 68,592 | 54.8% | 17,897 | 47.6% | 1st |
| Lewisham West and Penge | 70,772 | 57.4% | 18,801 | 46.3% | 1st |
| Leyton and Wanstead | 63,740 | 53.9% | 15,748 | 45.8% | 1st |
| Mitcham and Morden | 65,347 | 60.8% | 22,526 | 56.7% | 1st |
| Old Bexley and Sidcup | 64,878 | 65.2% | 11,842 | 28.0% | 2nd |
| Orpington | 66,844 | 72.4% | 2,893 | 6.0% | 3rd |
| Poplar and Limehouse | 70,452 | 50.1% | 12,463 | 35.3% | 1st |
| Putney | 60,004 | 59.8% | 13,470 | 37.5% | 2nd |
| Richmond Park | 69,566 | 73.2% | 4,711 | 9.2% | 3rd |
| Romford | 68,425 | 61.9% | 12,322 | 29.1% | 2nd |
| Ruislip, Northwood and Pinner | 69,292 | 62.4% | 10,378 | 24.0% | 2nd |
| Streatham | 72,696 | 51.8% | 17,699 | 47.0% | 1st |
| Sutton and Cheam | 64,281 | 67.2% | 5,116 | 11.8% | 3rd |
| Tooting | 71,532 | 59.4% | 18,129 | 42.7% | 1st |
| Tottenham | 66,238 | 47.8% | 18,343 | 57.9% | 1st |
| Twickenham | 71,444 | 72.3% | 5,868 | 11.4% | 3rd |
| Uxbridge and South Ruislip | 68,017 | 58.6% | 10,534 | 26.4% | 2nd |
| Vauxhall | 71,545 | 48.4% | 17,928 | 51.7% | 1st |
| Walthamstow | 63,079 | 54.6% | 17,323 | 50.3% | 1st |
| West Ham | 86,127 | 44.9% | 19,989 | 51.7% | 1st |
| Westminster North | 63,281 | 50.8% | 12,823 | 39.9% | 1st |
| Wimbledon | 64,204 | 67.8% | 15,548 | 35.7% | 2nd |
Turnout as calculated by the House of Commons Library, is the total number of votes cast and not spoiled, divided by the size of the electorate.
Under section 13(b) of the Representation of the People Act 1985, a candidate gaining 5% or less of the vote share will forfeit their deposit.
Estimates of the 2005 general election result in new constituencies
Colin Rallings and Michael Thrasher, then at the University of Plymouth, produced estimates of the 2005 general election result as if the new constituencies recommended by the separate Parliamentary Boundary Commissions for England, Wales and Northern Ireland had then been in existence.
The Elections Centre, established by Professors Colin Rallings and Michael Thrasher, moved to the University of Exeter in 2003.