An election to the 56th Parliament of the United Kingdom for the constituency area of Cambridge, held as part of the general election on 7 May 2015.
Labour gain from Liberal Democrats by Daniel Zeichner with a majority of 599 - 1.2% - on a turnout of 62.1%.
Candidates
| Name | Party | Vote | Vote share | Vote change |
| ZEICHNER, Daniel | Lab | 18,646 | 36.0% | 11.7% |
| HUPPERT, Julian | LD | 18,047 | 34.9% | -4.3% |
| FERNANDO, Chamali | Con | 8,117 | 15.7% | -9.9% |
| READ, Rupert | Green | 4,109 | 7.9% | 0.3% |
| O'FLYNN, Patrick | UKIP | 2,668 | 5.2% | 2.8% |
| GARRETT, Keith | RBD | 187 | 0.4% | - |
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 83,384, having a valid vote count of 51,774 and an invalid vote count of 171.
Result declared at 06:00 on 8 May 2015.