An election to the 58th Parliament of the United Kingdom for the constituency area of Streatham, held as part of the general election on 12 December 2019.
Labour hold by Bell Ribeiro-Addy with a majority of 17,690 - 31.3% - on a turnout of 66.7%.
Candidates
| Name | Party | Vote | Vote share | Vote change |
| RIBEIRO-ADDY, Bell | Lab | 30,976 | 54.8% | -13.7% |
| THOMPSON, Helen | LD | 13,286 | 23.5% | 17.0% |
| O'BROIN, Rory | Con | 9,060 | 16.0% | -5.3% |
| AINSLIE, Scott | Green | 2,567 | 4.5% | 1.5% |
| BECKER, Penelope | BRX | 624 | 1.1% | - |
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 84,783, having a valid vote count of 56,513 and an invalid vote count of 178.
Result declared at 04:21 on 13 December 2019.