1859 General Election - Middlesex
| Year | 1859 |
| General election | 1859 General Election |
| Constituency | Middlesex |
| Turnout | 27.8% |
Results
| Candidate | Party | Votes |
| Hanbury, Robert Culling | Liberal | 3,678 |
| Byng, George Henry Charles | Liberal | 3,618 |
| Haig, James | Conservative | 1,147 |