An election to the 56th Parliament of the United Kingdom for the constituency area of Truro and Falmouth, held as part of the general election on 7 May 2015.
Conservative hold by Sarah Newton with a majority of 14,000 - 27.2% - on a turnout of 70.0%.
Candidates
| Name | Party | Vote | Vote share | Vote change |
| NEWTON, Sarah | Con | 22,681 | 44.0% | 2.3% |
| RIX, Simon | LD | 8,681 | 16.8% | -24.0% |
| RODEN, Stuart | Lab | 7,814 | 15.2% | 5.5% |
| HYSLOP, John | UKIP | 5,967 | 11.6% | 7.7% |
| WESTBROOK, Karen | Green | 4,483 | 8.7% | 6.9% |
| RICH, Loic | Ind | 792 | 1.5% | - |
| RICHARDSON, Stephen | MK | 563 | 1.1% | -1.0% |
| EVANS, Rik | NHAP | 526 | 1.0% | - |
| GUFFOGG, Stanley | POPP | 37 | 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 73,601, having a valid vote count of 51,544 and an invalid vote count of 78.
Result declared at 07:10 on 8 May 2015.