An election to the 57th Parliament of the United Kingdom for the constituency area of Suffolk Coastal, held as part of the general election on 8 June 2017.
Conservative hold by Therese Coffey with a majority of 16,012 - 27.6% - on a turnout of 73.2%.
Candidates
| Name | Party | Vote | Vote share | Vote change |
| COFFEY, Therese | Con | 33,713 | 58.1% | 6.1% |
| MATTHEWS, Cameron | Lab | 17,701 | 30.5% | 12.5% |
| SANDBACH, James | LD | 4,048 | 7.0% | -1.6% |
| O'NOLAN, Eamonn | Green | 1,802 | 3.1% | -2.8% |
| YOUNG, Philip | Ind | 810 | 1.4% | - |
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 79,366, having a valid vote count of 58,074 and an invalid vote count of 236.
Result declared at 03:13 on 9 June 2017.