The Enfield West by-election of 19 November 1970 was held after Conservative Member of Parliament (MP) Iain Macleod died on 20 July of the same year. The seat was retained by the Conservatives.
| Party | Candidate | Votes | % | ±% | |
|---|---|---|---|---|---|
| Conservative | Cecil Parkinson | 15,205 | 57.18 | -0.72 | |
| Labour | Herbert C King | 6,926 | 26.05 | -0.17 | |
| Liberal | Anthony Stowell | 3,283 | 12.35 | -0.42 | |
| National Front | Kenneth Taylor | 1,176 | 4.42 | +1.31 | |
| Majority | 8,279 | 31.13 | -0.56 | ||
| Turnout | 26,590 | ||||
| Conservative hold | Swing | ||||