CONSTITUENCY RESULT : Mitcham and Morden
| Candidate name | Party | Gender | Number of votes | Share (%) | Change vs. 2017 for party (percentage points) | ||
| Siobhain McDonagh | Labour | Female | 27,964 | 61.1% | -7.5 | ||
| Toby Williams | Conservative | Male | 11,482 | 25.1% | +0.9 | ||
| Luke Taylor | Liberal Democrat | Male | 3,717 | 8.1% | +5.0 | ||
| Jeremy Maddocks | Brexit Party | Male | 1,202 | 2.6% | 0.0 | ||
| Pippa Maslin | Green | Female | 1,160 | 2.5% | +1.2 | ||
| Des Coke | Christian Peoples Alliance Party | Male | 216 | 0.5% | +0.0 |
| Election statistics | ||
| Majority | ||
| Votes | 16,482 | |
| Percent | 36.0% | |
| Rank (1 = highest %) | 171 | |
| Turnout | ||
| Constituency | 65.3% | |
| Region | 67.5% | |
| UK | 67.3% | |
| Constituency in 2017 | 70.0% | |
| Size of electorate | 70,021 | |
| Valid votes cast | 45,741 |