The 1909 East Denbighshire by-election was held on 2 April 1909. The by-election was held due to the incumbent Liberal MP, Edward Hemmerde, becoming Recorder of Liverpool. It was retained by Hemmerde. [1]
| Party | Candidate | Votes | % | ±% | |
|---|---|---|---|---|---|
| Liberal | Edward Hemmerde | 6,265 | 63.9 | −1.5 | |
| Liberal Unionist | Foster Cunliffe | 3,544 | 36.1 | +1.5 | |
| Majority | 2,721 | 27.8 | −3.0 | ||
| Turnout | 9,809 | 84.1 | +3.2 | ||
| Registered electors | 11,670 | ||||
| Liberal hold | Swing | ||||