1900 General Election - South Armagh
| Year | 1900 |
| General election | 1900 General Election |
| Constituency | South Armagh |
| Turnout | 40.6% |
Results
| Candidate | Party | Votes |
| Campbell, John | Healyite Nationalist | 1,646 |
| O'Neill, Charles | Irish Parliamentary | 1,261 |
| Year | 1900 |
| General election | 1900 General Election |
| Constituency | South Armagh |
| Turnout | 40.6% |
| Candidate | Party | Votes |
| Campbell, John | Healyite Nationalist | 1,646 |
| O'Neill, Charles | Irish Parliamentary | 1,261 |