The Member of Parliament for Ipswich in Suffolk, Richard Stokes, of the Labour Party died on 3 August 1957.
The by-election to fill his seat was held on 24 October. It was held for the Labour Party by Dingle Foot.
| Party | Candidate | Votes | % | ±% | |
|---|---|---|---|---|---|
| Labour | Dingle Foot | 26,898 | 45.8 | −7.1 | |
| Conservative | John C. Cobbold | 19,161 | 32.6 | −14.5 | |
| Liberal | Manuela Sykes | 12,587 | 21.4 | New | |
| Majority | 7,737 | 13.2 | +7.4 | ||
| Turnout | 27,405 | ||||
| Labour hold | Swing | +3.7 | |||