1964 General Election - Greenock
| Year | 1964 |
| General election | 1964 General Election |
| Constituency | Greenock |
| Turnout | 76.5% |
Results
| Candidate | Party | Votes |
| Mabon, Jesse Dickson | Labour | 19,627 |
| Barclay, Campbell M | Liberal | 9,055 |
| Sillars, Duncan Robert Gordon | Scottish Unionist | 6,473 |
| Thomson, John Stevenson | Independent Labour | 458 |