The 1917 Salford North by-election was held on 2 November 1917. The by-election was held due to the death of the incumbent Liberal MP, Sir William Byles. It was won by the Independent Labour Party candidate Ben Tillett.[1]
| Party | Candidate | Votes | % | ±% | |
|---|---|---|---|---|---|
| Independent Labour | Ben Tillett | 2,822 | 64.6 | New | |
| Liberal | Charles Mallet | 1,545 | 35.4 | -16.0 | |
| Majority | 1,277 | 29.2 | N/A | ||
| Turnout | 4,367 | 41.1 | -45.9 | ||
| Independent Labour gain from Liberal | Swing | ||||