An election to the 57th Parliament of the United Kingdom for the constituency area of Eastbourne, held as part of the general election on 8 June 2017.
Liberal Democrats gain from Conservative by Stephen Lloyd with a majority of 1,609 - 2.8% - on a turnout of 72.9%.
Candidates
| Name | Party | Vote | Vote share | Vote change |
| LLOYD, Stephen | LD | 26,924 | 46.9% | 8.7% |
| ANSELL, Caroline | Con | 25,315 | 44.1% | 4.5% |
| LAMBERT, Jake | Lab | 4,671 | 8.1% | 0.3% |
| HOUGH, Alex | Green | 510 | 0.9% | -1.7% |
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 78,754, having a valid vote count of 57,420 and an invalid vote count of 91.
Result declared at 03:29 on 9 June 2017.