An election to the 57th Parliament of the United Kingdom for the constituency area of Colchester, held as part of the general election on 8 June 2017.
Conservative hold by Will Quince with a majority of 5,677 - 10.6% - on a turnout of 66.9%.
Candidates
| Name | Party | Vote | Vote share | Vote change |
| QUINCE, Will | Con | 24,565 | 45.9% | 6.9% |
| YOUNG, Tim | Lab | 18,888 | 35.3% | 19.1% |
| RUSSELL, Bob | LD | 9,087 | 17.0% | -10.5% |
| GOACHER, Mark | Green | 828 | 1.5% | -3.6% |
| RENNIE, Robin | CPA | 177 | 0.3% | 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 79,996, having a valid vote count of 53,545 and an invalid vote count of 112.
Result declared at 02:52 on 9 June 2017.