An election to the 56th Parliament of the United Kingdom for the constituency area of Basildon and Billericay, held as part of the general election on 7 May 2015.
Conservative hold by John Baron with a majority of 12,482 - 29.0% - on a turnout of 64.9%.
Candidates
| Name | Party | Vote | Vote share | Vote change |
| BARON, John | Con | 22,668 | 52.7% | -0.1% |
| CALLAGHAN, Gavin | Lab | 10,186 | 23.7% | 0.6% |
| KONSTANTINIDIS, George | UKIP | 8,538 | 19.8% | 16.0% |
| THOMPSON, Martin | LD | 1,636 | 3.8% | -11.9% |
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 66,347, having a valid vote count of 43,028 and an invalid vote count of 198.
Result declared at 03:23 on 8 May 2015.