An election to the 56th Parliament of the United Kingdom for the constituency area of Streatham, held as part of the general election on 7 May 2015.
Labour hold by Chuka Umunna with a majority of 13,934 - 27.9% - on a turnout of 63.1%.
Candidates
| Name | Party | Vote | Vote share | Vote change |
| UMUNNA, Chuka | Lab | 26,474 | 53.0% | 10.2% |
| CADDY, Kim | Con | 12,540 | 25.1% | 6.8% |
| AHMAD, Amna | LD | 4,491 | 9.0% | -26.8% |
| BARTLEY, Jonathan | Green | 4,421 | 8.9% | 7.0% |
| MACHAN, Bruce | UKIP | 1,602 | 3.2% | - |
| BEAST, Artificial | CSA | 192 | 0.4% | - |
| MIRZA, Rohman | TUSC | 164 | 0.3% | - |
| GAYLE, Deon | WRP | 49 | 0.1% | -0.2% |
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.
An electorate of 79,137, having a valid vote count of 49,933 and an invalid vote count of 155.
Result declared at 03:15 on 8 May 2015.