The 1876 Leitrim by-election was fought on 14 July 1876. The by-election was fought due to the succession to a peerage of the incumbent Conservative MP, William Ormsby-Gore. It was won by the Home Rule candidate Francis O'Beirne.[1]
| Party | Candidate | Votes | % | ±% | |
|---|---|---|---|---|---|
| Home Rule | Francis O'Beirne | 1,276 | 58.9 | −9.4 | |
| Conservative | Arthur Loftus Tottenham | 885 | 40.8 | +9.1 | |
| Home Rule | Charles McGowan | 7 | 0.3 | N/A | |
| Majority | 391 | 18.1 | N/A | ||
| Turnout | 2,168 | 85.4 | −3.4 | ||
| Registered electors | 2,383 | ||||
| Home Rule gain from Conservative | Swing | +9.3 | |||