1906 General Election - South Londonderry
| Year | 1906 |
| General election | 1906 General Election |
| Constituency | South Londonderry |
| Turnout | 91.7% |
Results
| Candidate | Party | Votes |
| Gordon, John | Liberal Unionist | 3,847 |
| Keightley, Samuel Robert | Russellite Unionist | 3,776 |