The 1915 Cleveland by-election was held on 9 December 1915. The by-election was held due to the incumbent Liberal MP, Herbert Samuel, becoming Chancellor of the Duchy of Lancaster. It was retained by Samuel. [1]
| Party | Candidate | Votes | % | ±% | |
|---|---|---|---|---|---|
| Liberal | Herbert Samuel | 7,312 | 83.4 | +27.1 | |
| Independent | R Knight | 1,453 | 16.6 | New | |
| Majority | 5,859 | 66.8 | +54.2 | ||
| Turnout | 8,765 | 53.4 | −29.1 | ||
| Liberal hold | Swing | ||||
