1966 General Election - Mansfield
| Year | 1966 |
| General election | 1966 General Election |
| Constituency | Mansfield |
| Turnout | 74.8% |
Results
| Candidate | Party | Votes |
| Concannon, Don | Labour | 28,849 |
| Clarke, Kenneth | Conservative | 9,987 |
| Strauther, Reginald | Liberal | 5,483 |
| Westacott, Frederick | Communist | 590 |