1955 General Election - South Down
| Year | 1955 |
| General election | 1955 General Election |
| Constituency | South Down |
| Turnout | 73.9% |
Results
| Candidate | Party | Votes |
| Orr, Lawrence Percy Story | UUP | 37,921 |
| O'Rourke, Kevin | Sinn Féin | 19,624 |
| Year | 1955 |
| General election | 1955 General Election |
| Constituency | South Down |
| Turnout | 73.9% |
| Candidate | Party | Votes |
| Orr, Lawrence Percy Story | UUP | 37,921 |
| O'Rourke, Kevin | Sinn Féin | 19,624 |