An election to the 56th Parliament of the United Kingdom for the constituency area of Gillingham and Rainham, held as part of the general election on 7 May 2015.
Conservative hold by Rehman Chishti with a majority of 10,530 - 22.4% - on a turnout of 66.3%.
Candidates
| Name | Party | Vote | Vote share | Vote change |
| CHISHTI, Rehman | Con | 22,590 | 48.0% | 1.8% |
| CLARK, Paul | Lab | 12,060 | 25.6% | -2.0% |
| HANSON, Mark | UKIP | 9,199 | 19.5% | 16.3% |
| CHAPLIN, Paul | LD | 1,707 | 3.6% | -14.5% |
| WILLIAMS, Neil | Green | 1,133 | 2.4% | 1.6% |
| BERRY, Jacqui | TUSC | 273 | 0.6% | - |
| PEACOCK, Roger | Ind | 72 | 0.2% | - |
| WALTERS, Mike | Ind | 44 | 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 70,984, having a valid vote count of 47,078 and an invalid vote count of 194.
Result declared at 08:48 on 8 May 2015.