| Election Name: | 2015 United Kingdom general election |
| Country: | United Kingdom |
| Type: | parliamentary |
| Registered: | 46,354,197 |
| Ongoing: | no |
| Previous Election: | 2010 United Kingdom general election |
| Previous Year: | 2010 |
| Outgoing Members: | List of MPs elected in the 2010 United Kingdom general election |
| Election Date: | 7 May 2015 |
| Elected Members: | List of MPs elected in the 2015 United Kingdom general election |
| Next Election: | 2017 United Kingdom general election |
| Next Year: | 2017 |
| Seats For Election: | All 650 seats in the House of Commons[1] |
| Majority Seats: | 326 |
| Opinion Polls: | Opinion polling for the 2015 United Kingdom general election |
| Turnout: | 66.4%[2] (1.3%) |
| Leader1: | David Cameron |
| Party1: | Conservative Party (UK) |
| Leader Since1: | 6 December 2005 |
| Leaders Seat1: | Witney |
| Last Election1: | 306 seats, 36.1% |
| Seats1: | 330 |
| Seat Change1: | 24 |
| Popular Vote1: | 11,334,726 |
| Percentage1: | 36.9% |
| Swing1: | 0.8 pp |
| Leader2: | Ed Miliband |
| Leader Since2: | 25 September 2010 |
| Party2: | Labour Party (UK) |
| Leaders Seat2: | Doncaster North |
| Last Election2: | 258 seats, 29.0% |
| Seats2: | 232 |
| Seat Change2: | 26 |
| Popular Vote2: | 9,347,324 |
| Percentage2: | 30.4% |
| Swing2: | 1.5 pp |
| Leader4: | Nicola Sturgeon |
| Leader Since4: | 14 November 2014 |
| Party4: | Scottish National Party |
| Leaders Seat4: | Did not stand |
| Last Election4: | 6 seats, 1.7% |
| Seats4: | 56 |
| Seat Change4: | 50 |
| Popular Vote4: | 1,454,436 |
| Percentage4: | 4.7% |
| Swing4: | 3.1 pp |
| Leader5: | Nick Clegg |
| Leader Since5: | 18 December 2007 |
| Party5: | Liberal Democrats (UK) |
| Leaders Seat5: | Sheffield Hallam |
| Last Election5: | 57 seats, 23.0% |
| Seats5: | 8 |
| Seat Change5: | 49 |
| Popular Vote5: | 2,415,862 |
| Percentage5: | 7.9% |
| Swing5: | 15.2 pp |
