- Source: 1874 Launceston by-election
- 1874 Launceston by-election
- 1874 Mayo by-election
- Launceston (UK Parliament constituency)
- 1874 Huntingdon by-election
- 1874 Buckinghamshire by-election
- 1874 County Dublin by-election
- 1874 Eye by-election
- 1874 Monmouthshire by-election
- 1874 Portsmouth by-election
- List of ministerial by-elections to the Parliament of the United Kingdom
The 1874 Launceston by-election was fought on 3 July 1874. The byelection was fought due to the void Election of the incumbent Conservative MP, James Henry Deakin (senior). It was won by his son, the Conservative candidate James Henry Deakin (junior).