2005 General Election - Gainsborough
| Year | 2005 |
| General election | 2005 General Election |
| Constituency | Gainsborough |
| Turnout | 64.6% |
Results
| Candidate | Party | Votes |
| Leigh, Edward | Conservative | 20,040 |
| Heath, Adrian | Liberal Democrats | 12,037 |
| Knight, John | Labour | 11,744 |
| Pearson, Steven | UKIP | 1,860 |