An election to the 56th Parliament of the United Kingdom for the constituency area of Stevenage, held as part of the general election on 7 May 2015.
Conservative hold by Stephen McPartland with a majority of 4,955 - 10.4% - on a turnout of 67.7%.
Candidates
| Name | Party | Vote | Vote share | Vote change |
| MCPARTLAND, Stephen | Con | 21,291 | 44.5% | 3.1% |
| TAYLOR, Sharon | Lab / Co-op | 16,336 | 34.2% | 0.8% |
| COLLINS, David | UKIP | 6,864 | 14.4% | 9.9% |
| VAN DE VEN, Susan | LD | 1,582 | 3.3% | -13.3% |
| WHITE, Graham | Green | 1,369 | 2.9% | - |
| PALMER, Trevor | TUSC | 175 | 0.4% | - |
| VICKERS, Charles | ED | 115 | 0.2% | -0.6% |
| COX, David | Ind | 67 | 0.1% | - |
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 70,597, having a valid vote count of 47,799 and an invalid vote count of 127.
Result declared at 04:38 on 8 May 2015.