1900 General Election - South Antrim
| Year | 1900 |
| General election | 1900 General Election |
| Constituency | South Antrim |
| Turnout | 65.1% |
Results
| Candidate | Party | Votes |
| Ellison-Macartney, William Grey | Irish Unionist | 3,674 |
| Lawther, Samuel | Independent Unionist | 3,081 |