An election to the 58th Parliament of the United Kingdom for the constituency area of Carshalton and Wallington, held as part of the general election on 12 December 2019.
Conservative gain from Liberal Democrats by Elliot Colburn with a majority of 629 - 1.3% - on a turnout of 67.3%.
Candidates
| Name | Party | Vote | Vote share | Vote change |
| COLBURN, Elliot | Con | 20,822 | 42.4% | 4.1% |
| BRAKE, Thomas | LD | 20,193 | 41.1% | 0.1% |
| WATTOO, Ahmad | Lab | 6,081 | 12.4% | -6.1% |
| WOUDHUYSEN, James | BRX | 1,043 | 2.1% | - |
| HAGUE, Tracey | Green | 759 | 1.5% | 0.6% |
| DICKENSON, Ashley | CPA | 200 | 0.4% | 0.0% |
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 72,941, having a valid vote count of 49,098 and an invalid vote count of 125.
Result declared at 05:23 on 13 December 2019.