The following elections occurred in the year 1918. Many of these were disrupted by the 1918 Influenza Pandemic, and the First World War.
Europe
- 1918 Danish Folketing election
- 1918 Danish Landsting election
- 1918 Dutch general election
- 1918 Icelandic sovereignty referendum
- 1918 Norwegian parliamentary election
- 1918 Portuguese general election
- 1918 Romanian National Assembly election
- 1918 Ukrainian Constituent Assembly election
- 1918 Estonian Constituent Assembly election
United Kingdom
- 1918 Banbury by-election
- 1918 Clapham by-election
- 1918 Elgin Burghs by-election
- 1918 Finsbury East by-election
- 1918 United Kingdom general election
- 1918 United Kingdom general election in Ireland
- List of MPs elected in the 1918 United Kingdom general election
- 1918 Manchester North East by-election
- 1918 Newcastle-upon-Tyne by-election
- January 1918 Prestwich by-election
- October 1918 Prestwich by-election
- 1918 South Shields by-election
- 1918 Wansbeck by-election
- 1918 Wilton by-election
Americas
- 1918 Argentine legislative election
- 1918 Brazilian general election
- 1918 Nicaraguan parliamentary election
Canada
United States
- 1918 United States elections
- United States House of Representatives elections in California, 1918
- 1918 California gubernatorial election
- 1918 Minnesota gubernatorial election
- 1918 New York state election
- United States Senate special election in South Carolina, 1918
- United States Senate election in South Carolina, 1918
- United States House of Representatives elections in South Carolina, 1918
- 1918 South Carolina gubernatorial election
- 1918 United States House of Representatives elections
- 1918 United States Senate elections
United States Senate
- United States Senate election in Massachusetts, 1918
- United States Senate election in South Carolina, 1918
- United States Senate special election in South Carolina, 1918
- 1918 United States Senate elections
Panama
Oceania
Australia
New Zealand
- 1918 Grey by-election
- 1918 Palmerston by-election
- 1918 Taranaki by-election
- 1918 Wellington Central by-election
- 1918 Wellington North by-election
- 1918 Wellington South by-election