The following elections occurred in the year 1975.
Africa
- 1975 Cameroonian presidential election
- 1975 Cape Verdean parliamentary election
- 1975 Ivorian general election
- 1975 Liberian general election
- 1975 São Tomé and Príncipe legislative election
- 1975 Tanzanian general election
- 1975 Zairean parliamentary election
Asia
- 1975 Iranian legislative election
- 1975 Kuwaiti general election
- 1975 Philippine Kabataang Barangay election
- 1975 Philippine Sangguniang Bayan elections
- 1975 Republic of China legislative election
- 1975 Thai general election
Europe
- 1975 Austrian legislative election
- 1975 Danish parliamentary election
- 1975 Finnish parliamentary election
- Germany:
- 1975 Liechtenstein referendums
- 1975 Northern Cyprus constitutional referendum
- 1975 Norwegian local elections
- 1975 Portuguese Constituent Assembly election
- 1975 United Kingdom European Communities membership referendum
- 1975 Swiss referendums
- 1975 Venetian regional election
North America
Canada
- 1975 Alberta general election
- 1975 British Columbia general election
- 1975 New Democratic Party leadership election
- 1975 Newfoundland general election
- 1975 Northwest Territories general election
- 1975 Ontario general election
- 1975 Saskatchewan general election
United States
Oceania
Australia
- 1975 Australian federal election
- 1975 Bass by-election
- 1975 South Australian state election
- 1975 Western Australian daylight saving referendum