An election to the 56th Parliament of the United Kingdom for the constituency area of St Albans, held as part of the general election on 7 May 2015.
Conservative hold by Anne Main with a majority of 12,732 - 23.4% - on a turnout of 71.8%.
Candidates
| Name | Party | Vote | Vote share | Vote change |
| MAIN, Anne | Con | 25,392 | 46.6% | 5.9% |
| POLLARD, Kerry | Lab | 12,660 | 23.3% | 5.7% |
| WALKINGTON, Sandy | LD | 10,076 | 18.5% | -17.9% |
| WRIGHT, Chris | UKIP | 4,271 | 7.8% | 4.0% |
| EASTON, Jack | Green | 2,034 | 3.7% | 2.3% |
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 75,825, having a valid vote count of 54,433 and an invalid vote count of 156.
Result declared at 05:30 on 8 May 2015.