1918 General Election - South County Dublin
| Year | 1918 |
| General election | 1918 General Election |
| Constituency | South County Dublin |
| Turnout | 74.6% |
Results
| Candidate | Party | Votes |
| Duffy, George Gavan | Sinn Féin | 5,133 |
| Robinson, Thomas | Irish Unionist | 4,354 |
| Clarke, Thomas | Irish Parliamentary | 3,819 |