An election to the 57th Parliament of the United Kingdom for the constituency area of Dagenham and Rainham, held as part of the general election on 8 June 2017.
Labour hold by Jon Cruddas with a majority of 4,652 - 10.1% - on a turnout of 64.9%.
Candidates
| Name | Party | Vote | Vote share | Vote change |
| CRUDDAS, Jon | Lab | 22,958 | 50.1% | 8.7% |
| MARSON, Julie | Con | 18,306 | 39.9% | 15.6% |
| HARRIS, Peter | UKIP | 3,246 | 7.1% | -22.8% |
| BREADING, Denis | Green | 544 | 1.2% | -0.7% |
| FRYER, Jonathan | LD | 465 | 1.0% | -0.7% |
| STURDY, Paul | BNP | 239 | 0.5% | 0.2% |
| LONDON, Terence | Cncd | 85 | 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 70,616, having a valid vote count of 45,843 and an invalid vote count of 73.
Result declared at 03:34 on 9 June 2017.