An election to the 57th Parliament of the United Kingdom for the constituency area of Ipswich, held as part of the general election on 8 June 2017.
Labour gain from Conservatives by Sandy Martin with a majority of 831 - 1.6% - on a turnout of 67.6%.
Candidates
| Name | Party | Vote | Vote share | Vote change |
| MARTIN, Sandy | Lab | 24,224 | 47.4% | 10.3% |
| GUMMER, Ben | Con | 23,393 | 45.7% | 1.0% |
| GOULD, Tony | UKIP | 1,372 | 2.7% | -9.0% |
| HYYRYLAINEN-TRETT, Adrian | LD | 1,187 | 2.3% | -0.6% |
| ARMSTRONG, Charlotte | Green | 840 | 1.6% | -1.9% |
| TABANE, David | Ind | 121 | 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 75,668, having a valid vote count of 51,137 and an invalid vote count of 100.
Result declared at 02:59 on 9 June 2017.