An election to the 57th Parliament of the United Kingdom for the constituency area of South West Norfolk, held as part of the general election on 8 June 2017.
Conservative hold by Elizabeth Truss with a majority of 18,312 - 34.9% - on a turnout of 67.3%.
Candidates
| Name | Party | Vote | Vote share | Vote change |
| TRUSS, Elizabeth | Con | 32,894 | 62.8% | 11.8% |
| SMITH, Peter | Lab | 14,582 | 27.8% | 10.6% |
| WILLIAMS, David | UKIP | 2,575 | 4.9% | -18.3% |
| GORDON, Stephen | LD | 2,365 | 4.5% | 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 77,874, having a valid vote count of 52,416 and an invalid vote count of 154.
Result declared at 04:10 on 9 June 2017.