An election to the 57th Parliament of the United Kingdom for the constituency area of Brentwood and Ongar, held as part of the general election on 8 June 2017.
Conservative hold by Alex Burghart with a majority of 24,002 - 45.4% - on a turnout of 70.5%.
Candidates
| Name | Party | Vote | Vote share | Vote change |
| BURGHART, Alex | Con | 34,811 | 65.8% | 7.0% |
| BARRETT, Gareth | Lab | 10,809 | 20.4% | 7.9% |
| CHILVERS, Karen | LD | 4,426 | 8.4% | -0.5% |
| MCGOUGH, Michael | UKIP | 1,845 | 3.5% | -13.3% |
| JEATER, Paul | Green | 915 | 1.7% | -1.0% |
| KOUSOULOU, Louca | Ind | 104 | 0.2% | - |
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 75,067, having a valid vote count of 52,910 and an invalid vote count of 107.
Result declared at 03:27 on 9 June 2017.