An election to the 58th Parliament of the United Kingdom for the constituency area of St Albans, held as part of the general election on 12 December 2019.
Liberal Democrats gain from Conservative by Daisy Cooper with a majority of 6,293 - 10.9% - on a turnout of 78.1%.
Candidates
| Name | Party | Vote | Vote share | Vote change |
| COOPER, Daisy | LD | 28,867 | 50.1% | 17.7% |
| MAIN, Anne | Con | 22,574 | 39.2% | -3.9% |
| LURY, Rebecca | Lab | 5,000 | 8.7% | -14.4% |
| GROVER, Simon | Green | 1,004 | 1.7% | 0.3% |
| SHERRINGTON, Jules | Ind | 154 | 0.3% | - |
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 73,727, having a valid vote count of 57,599 and an invalid vote count of 173.
Result declared at 03:51 on 13 December 2019.