1964 General Election - South West Hertfordshire
| Year | 1964 |
| General election | 1964 General Election |
| Constituency | South West Hertfordshire |
| Turnout | 83.0% |
Results
| Candidate | Party | Votes |
| Longden, Sir Gilbert James Morley | Conservative | 28,308 |
| Bidwell, Sydney James | Labour | 22,237 |
| Brown, R Douglas | Liberal | 11,301 |