The Labour Party has more MPs in Greater London than any other political party, as of the 2019 general election. As of February 2019 the party holds 46 seats.
| MP | Constituency | Borough parties | Majority | % majority | |
|---|---|---|---|---|---|
| Hackney North and Stoke Newington | Hackney Labour Party | 33,188 | 58.4 | ||
| Bethnal Green and Bow | Tower Hamlets Labour Party | 37,524 | 62.0 | ||
| Putney | Putney Labour Party | 4,774 | 9.4 | ||
| West Ham | Newham Labour Party | 32,388 | 53.8 | ||
| Westminster North | Westminster Labour Party and Kensington and Chelsea Labour Party | 10,5759 | 25.1 | ||
| Brent Central | Brent Labour Party | 20,870 | 42.5 | ||
| Brentford and Isleworth | Hounslow Labour Party | 10,514 | 18.0 | ||
| Enfield Southgate | Enfield Labour Party | 4,450 | 9.4 | ||
| Bermondsey and Old Southwark | Southwark Labour Party | 16,126 | 27.5 | ||
| Walthamstow | Waltham Forest Labour Party | 30,862 | 63.8 | ||
| Dagenham and Rainham | Barking and Dagenham Labour Party | 293 | 0.7 | ||
| Leyton and Wanstead | Waltham Forest Labour Party | 20,808 | 46.7 | ||
| Battersea | Wandsworth Labour Party | 5,668 | 9.5 | ||
| Lewisham East | Lewisham Labour Party | 5,629 | 25.6 | ||
| Eltham | Greenwich Labour Party | 6,296 | 13.6 | ||
| Poplar and Limehouse | Tower Hamlets Labour Party | 27,712 | 47.2 | ||
| Lewisham Deptford | Lewisham Labour Party | 34,899 | 63.3 | ||
| Brent North | Brent Labour Party | 17,061 | 30.2 | ||
| Camberwell and Peckham | Southwark Labour Party | 37,316 | 65.0 | ||
| Dulwich and West Norwood | Southwark Labour Party | 28,156 | 50.1 | ||
| Hackney South and Shoreditch | Hackney Labour Party | 37,931 | 68.5 | ||
| Barking | Barking and Dagenham Labour Party | 21,608 | 45.3 | ||
| Ealing Central and Acton | Ealing Labour Party | 13,807 | 25.0 | ||
| Croydon Central | Croydon Labour Party | 5,652 | 9.9 | ||
| Tooting | Wandsworth Labour Party | 15,458 | 26.5 | ||
| Tottenham | Haringey Labour Party | 34,584 | 70.1 | ||
| Feltham and Heston | Hounslow Labour Party | 15,603 | 29.4 | ||
| Mitcham and Morden | Merton Labour Party | 21,375 | 44.5 | ||
| Hayes and Harlington | Hillingdon Labour Party | 18,115 | 37.9 | ||
| Ealing North | Ealing Labour Party | 12,269 | 24.7 | ||
| Edmonton | Enfield Labour Party | 21,115 | 48.4 | ||
| Erith and Thamesmead | Bexley Labour Party and Greenwich Labour Party | 10,014 | 22.5 | ||
| Greenwich and Woolwich | Greenwich Labour Party | 20,714 | 39.0 | ||
| Croydon North | Croydon Labour Party | 32,365 | 54.3 | ||
| Lewisham West and Penge | Lewisham Labour Party | 23,162 | 43.0 | ||
| Hampstead and Kilburn | Brent Labour Party & Camden Labour Party | 15,560 | 26.6 | ||
| Ealing Southall | Ealing Labour Party | 22,090 | 49.0 | ||
| Hammersmith | Hammersmith and Fulham Labour Party and Ealing Labour Party | 18,651 | 35.7 | ||
| Holborn and St Pancras | Camden Labour Party | 30,509 | 51.7 | ||
| Ilford North | Redbridge Labour Party | 9,639 | 18.2 | ||
| Harrow West | Harrow Labour Party | 13,314 | 26.4 | ||
| Islington South and Finsbury North | Islington Labour Party | 20,263 | 42.7 | ||
| East Ham | Newham Labour Party | 39,883 | 71.2 | ||
| Hornsey and Wood Green | Haringey Labour Party | 30,378 | 49.3 |