1970 General Election - Lanark
| Year | 1970 |
| General election | 1970 General Election |
| Constituency | Lanark |
| Turnout | 79.5% |
Results
| Candidate | Party | Votes |
| Hart, Judith | Labour | 30,194 |
| MacDougall, Alan | Conservative | 27,721 |
| Rankin, Henry | SNP | 7,859 |
| McDowall, David | Communist | 1,273 |