The following elections occurred in the year 2004.
Africa
- 2004 Algerian presidential election
- 2004 Botswana general election
- 2004 Cameroonian presidential election
- 2004 Comorian legislative election
- 2004 Equatorial Guinean legislative election
- 2004 Ghanaian parliamentary election
- 2004 Ghanaian presidential election
- 2004 Guinea-Bissau legislative election
- 2004 Mahoran legislative election
- 2004 Malawian general election
- 2004 Mozambican general election
- 2004 Namibian general election
- 2004 Nigerien general election
- 2004 Nigerien parliamentary election
- 2004 Nigerien presidential election
- 2004 South African general election
Asia
- 2004 Afghan presidential election
- 2004 Hong Kong legislative election
- 2004 Indonesian legislative election
- 2004 Indonesian presidential election
- 2004 Iranian legislative election
- 2004 Kazakhstani legislative election
- 2004 Malaysian general election
- 2004 Mongolian legislative election
- 2004 Pakistani presidential election
- 2004 Philippine general election
- 2004 Republic of China legislative election (Taiwan)
- 2004 Republic of China presidential election (Taiwan)
- 2004 South Korean legislative election
- 2004 Sri Lankan parliamentary election
- 2004 Sri Lankan provincial council election
- 2004 Turkish local elections
- 2004–2005 Uzbekistani parliamentary election
India
- Indian general election in Arunachal Pradesh, 2004
- Indian general election in Kerala, 2004
- Indian general election in Madhya Pradesh, 2004
- Indian general election in Sikkim, 2004
- Indian general elections, 2004-Assam
- Indian general elections, 2004-Regional Scenarios
- Indian general election full results, 2004
- Indian general election in Andhra Pradesh, 2004
- Indian general election in Assam, 2004
- Indian general election in Bihar, 2004
- Indian general election in Chhattisgarh, 2004
- Indian general election in Haryana, 2004
- Indian general election in Manipur, 2004
- Indian general election in Tamil Nadu, 2004
- 2004 Karnataka Legislative Assembly election
- 2004 Maharashtra state assembly elections
- State Assembly elections in India, 2004
Indian general
- 2004 Indian general election analysis
- India Shining
- Indian general election in Gujarat, 2004
- Indian general election in Karnataka, 2004
- Indian general election in National Capital Territory of Delhi, 2004
- 2004 Indian general election
- Results of the 2004 Indian general election by parliamentary constituency
- Results of the 2004 Indian general election in Tamil Nadu by assembly constituents
Japan
- 2004 Iwate gubernatorial election
- 2004 Japanese House of Councillors election
- 2004 Shinjuku local election
Malaysia
Philippines
- 2004 Cebu City local elections
- 2004 Philippine presidential election
- 2004 Philippine Senate election
Russia
Australia
- 2004 Australian Capital Territory election
- 2004 Australian federal election
- 2004 Dubbo state by-election
- 2004 Queensland state election
Europe
- 2004 Abkhazian presidential election
- 2004 Belarusian parliamentary election
- 2004 Belarusian referendum
- 2004 Belgian regional elections
- 2004 Bosnia and Herzegovina municipal elections
- 2004 Cypriot Annan Plan referendum
- Elections in Alderney
- 2004 European Parliament election in Slovenia
- 2004 Faroese parliamentary election
- 2004 Georgian presidential election
- 2004 Georgian legislative election
- 2004 Greek legislative election
- 2004 Guernsey general election
- 2004 Icelandic presidential election
- 2004 Irish local elections
- 2004 Irish presidential election
- 2004 Kosovan parliamentary election
- 2004 Lithuanian parliamentary election
- 2004 Lithuanian presidential election
- 2004 Luxembourg general election
- 2004 Macedonian autonomy referendum
- 2004 Macedonian presidential election
- 2004 Montenegrin municipal election
- 2004 Romanian legislative election
- 2004 Romanian local election
- 2004 Romanian presidential election
- 2004 Serbian presidential election
- 2004 Slovak presidential election
- 2004 Slovenian parliamentary election
- 2004 South Ossetian parliamentary election
- 2004 Turkish local elections
- 2004 Ukrainian presidential election
- 2004 Vojvodina parliamentary election
Austria
- 2004 Austrian presidential election
- 2004 European Parliament election in Austria
- 2004 Vorarlberg state election
European Parliament
- 2004 European Parliament election
- 2004 European Parliament election in Austria
- 2004 European Parliament election in Belgium
- 2004 European Parliament election in Cyprus
- 2004 European Parliament election in the Czech Republic
- 2004 European Parliament election in Denmark
- 2004 European Parliament election in Estonia
- 2004 European Parliament election in Portugal
- 2004 European Parliament election in Aosta Valley
- 2004 European Parliament election in Lombardy
- 2004 European Parliament election in Piedmont
- 2004 European Parliament election in Sardinia
- 2004 European Parliament election in Sicily
- 2004 European Parliament election in Trentino-Alto Adige/Südtirol
- 2004 European Parliament election in Veneto
- 2004 European Parliament election in Finland
- 2004 European Parliament election in France
- 2004 European Parliament election in Germany
- 2004 European Parliament election in Gibraltar
- 2004 European Parliament election in Greece
- 2004 European Parliament election in Hungary
- 2004 European Parliament election in Ireland
- 2004 European Parliament election in Italy
- 2004 European Parliament election in Latvia
- 2004 European Parliament election in Lithuania
- 2004 European Parliament election in Luxembourg
- 2004 European Parliament election in Malta
- 2004 European Parliament election in the Netherlands
- 2004 European Parliament election in Poland
- 2004 European Parliament election in Slovakia
- 2004 European Parliament election in Slovenia
- 2004 European Parliament election in Spain
- 2004 European Parliament election in Sweden
- 2004 European Parliament election in the United Kingdom
Faroe Islands
France
- 2004 Alsace regional election
- 2004 Auvergne regional election
- 2004 Brittany regional election
- 2004 Champagne-Ardenne regional election
- 2004 European Parliament election in France
- 2004 Franche-Comté regional election
- 2004 French Polynesian legislative election
- 2004 French regional elections
- 2004 French Senate election
- 2004 French cantonal elections
- 2004 Île-de-France regional election
- 2004 Poitou-Charentes regional election
- 2004 Provence-Alpes-Côte d'Azur regional election
- 2004 Rhône-Alpes regional election
Georgia
Germany
- 2004 Brandenburg state election
- 2004 European Parliament election in Germany
- 2004 Hamburg state election
- 2004 German presidential election
- 2004 Saarland state election
- 2004 Saxony state election
- 2004 Thuringia state election
Greece
Iceland
Italy
- 2004 European Parliament election in Aosta Valley
- 2004 European Parliament election in Italy
- 2004 European Parliament election in Lombardy
- 2004 European Parliament election in Piedmont
- 2004 European Parliament election in Sardinia
- 2004 European Parliament election in Sicily
- 2004 European Parliament election in Trentino-Alto Adige/Südtirol
- 2004 European Parliament election in Veneto
- 2004 Sardinian regional election
Kosovo
Lithuania
- 2004 Lithuanian parliamentary election
- 2004 Lithuanian presidential election
- 2004 Luxembourg general election
Macedonia
Romania
Russia
San Marino
Slovakia
Slovenia
South Ossetia
Spain
United Kingdom
- 2004 United Kingdom elections
- 2004 European Parliament election in the United Kingdom
- 2004 Birmingham Hodge Hill by-election
- 2004 Hartlepool by-election
- 2004 Leicester South by-election
- 2004 United Kingdom local elections
- 2004 London Assembly election
- 2004 London mayoral election
- 2004 Ulster Unionist Party leadership election
United Kingdom local
English local
- 2004 Adur Council election
- 2004 Amber Valley Council election
- 2004 Barnsley Council election
- 2004 Barrow-in-Furness Council election
- 2004 Bassetlaw Council election
- 2004 Blackburn with Darwen Council election
- 2004 Bolton Council election
- 2004 Brentwood Council election
- 2004 Broxbourne Council election
- 2004 Burnley Council election
- 2004 Calderdale Council election
- 2004 Cheltenham Council election
- 2004 Cherwell Council election
- 2004 Chorley Council election
- 2004 Coventry Council election
- 2004 Craven Council election
- 2004 Daventry Council election
- 2004 Derby Council election
- 2004 Eastleigh Council election
- 2004 Ellesmere Port and Neston Council election
- 2004 Epping Forest Council election
- 2004 Fareham Council election
- 2004 Gateshead Council election
- 2004 Gosport Council election
- 2004 Halton Council election
- 2004 Harlow Council election
- 2004 Hart Council election
- 2004 Hastings Council election
- 2004 Hull Council election
- 2004 Hyndburn Council election
- 2004 Ipswich Borough Council election
- 2004 Knowsley Council election
- 2004 Lincoln Council election
- 2004 Liverpool Council election
- 2004 Mole Valley Council election
- 2004 Newcastle-under-Lyme Council election
- 2004 North Tyneside Council election
- 2004 Nuneaton and Bedworth Council election
- 2004 Oxford City Council election
- 2004 Penwith Council election
- 2004 Portsmouth Council election
- 2004 Preston Council election
- 2004 Purbeck Council election
- 2004 Redditch Council election
- 2004 Rochdale Council election
- 2004 Rochford Council election
- 2004 Rossendale Council election
- 2004 Rugby Council election
- 2004 Runnymede Council election
- 2004 Rushmoor Council election
- 2004 Salford Council election
- 2004 Sefton Council election
- 2004 Sheffield Council election
- 2004 Slough Council election
- 2004 Solihull Council election
- 2004 South Lakeland Council election
- 2004 South Tyneside Council election
- 2004 Southend-on-Sea Council election
- 2004 St Albans Council election
- 2004 St Helens Council election
- 2004 Stevenage Council election
- 2004 Stratford-on-Avon Council election
- 2004 Swindon Council election
- 2004 Tamworth Council election
- 2004 Tandridge Council election
- 2004 Three Rivers Council election
- 2004 Thurrock Council election
- 2004 Trafford Council election
- 2004 Tunbridge Wells Council election
- 2004 Wakefield Council election
- 2004 Watford Council election
- 2004 Welwyn Hatfield Council election
- 2004 West Lancashire Council election
- 2004 West Lindsey Council election
- 2004 Weymouth and Portland Council election
- 2004 Wigan Council election
- 2004 Winchester Council election
- 2004 Wirral Council election
- 2004 Woking Council election
- 2004 Wokingham Council election
- 2004 Wolverhampton Council election
- 2004 Worcester Council election
- 2004 Worthing Council election
- 2004 Wyre Forest Council election
North America
Canada
- 2004 Canadian federal election
- 2004 Alberta Senate nominee election
- Alberta Student Vote, 2004
- 2004 Alberta general election
- 2004 Conservative Party of Canada leadership election
- 2004 New Brunswick municipal elections
- 2004 Halifax Regional Municipality municipal election
- 2004 Nunavut general election
- 2004 Progressive Conservative Party of Ontario leadership election
- 2004 Quebec provincial by-elections
Alberta municipal
Caribbean
- 2004 Antigua and Barbuda general election
- 2004 Dominican Republic presidential election
- 2004 Saint Kitts and Nevis general election
Puerto Rican
Mexico
- 2004 Mexican elections
- 2004 Chihuahua state election
- 2004 Durango state election
- 2004 Oaxaca state election
- 2004 Zacatecas state election
Puerto Rican
United States
- 2004 United States presidential election
- 2004 United States House of Representatives elections
- 2004 United States Senate elections
- 2004 United States elections
United States gubernatorial
- 2004 United States gubernatorial elections
- 2004 Delaware gubernatorial election
- 2004 Indiana gubernatorial election
- 2004 Missouri lieutenant gubernatorial election
- 2004 Missouri gubernatorial election
- 2004 Montana gubernatorial election
- 2004 New Hampshire gubernatorial election
- 2004 North Carolina gubernatorial election
- 2004 North Dakota gubernatorial election
- 2004 Utah gubernatorial election
- 2004 Vermont gubernatorial election
- 2004 Washington gubernatorial election
- 2004 West Virginia gubernatorial election
United States mayoral
Alabama
- 2004 Alabama elections
- 2004 Alabama Democratic presidential primary
- 2004 United States Senate election in Alabama
- 2004 United States presidential election in Alabama
Alaska
American Samoa
Arizona
- 2004 Arizona Democratic presidential primary
- 2004 Arizona Proposition 200
- Maricopa County Sheriff's Office
- 2004 United States Senate election in Arizona
- 2004 United States presidential election in Arizona
- Wisconsin Democratic primary, 2004
Arkansas
California
- 2004 California state elections
- 2004 California Democratic presidential primary
- 2004 California Republican presidential primary
- 2004 San Francisco Board of Supervisors elections
- March 2004 San Francisco general elections
- November 2004 San Francisco general elections
- 2004 California State Senate elections
- 2004 California State Assembly elections
California congressional
Colorado
Connecticut
- United States presidential election in Connecticut, 2004
- United States Senate election in Connecticut, 2004
Delaware
- Delaware Democratic primary, 2004
- 2004 Delaware gubernatorial election
- United States presidential election in Delaware, 2004
Florida
Georgia (U.S. state)
- United States House of Representatives elections in Georgia, 2004
- United States Senate election in Georgia, 2004
- United States presidential election in Georgia, 2004
Guam
Hawaii
Indiana
- 2004 Indiana gubernatorial election
- United States presidential election in Indiana, 2004
- United States Senate election in Indiana, 2004
Iowa
- Iowa Democratic caucuses, 2004
- United States presidential election in Iowa, 2004
- United States Senate election in Iowa, 2004
Kansas
Kentucky
- 2004 Kentucky's 6th congressional district special election
- United States presidential election in Kentucky, 2004
- United States House of Representatives elections in Kentucky, 2004
- United States Senate election in Kentucky, 2004
Louisiana
- United States presidential election in Louisiana, 2004
- United States Senate election in Louisiana, 2004
Maine
Maryland
- Maryland Democratic primary, 2004
- United States Senate election in Maryland, 2004
- United States presidential election in Maryland, 2004
Massachusetts
Michigan
Minnesota
Missouri
- Missouri Democratic primary, 2004
- 2004 Missouri gubernatorial election
- 2004 Missouri Lieutenant gubernatorial election
- United States presidential election in Missouri, 2004
- Missouri Republican primary, 2004
- 2004 United States Senate election in Missouri
Montana
Nebraska
Nevada
- Nevada Democratic caucuses, 2004
- United States presidential election in Nevada, 2004
- United States Senate election in Nevada, 2004
New Hampshire
- New Hampshire Democratic primary, 2004
- 2004 New Hampshire gubernatorial election
- 2004 New Hampshire state elections
- United States Senate election in New Hampshire, 2004
- United States presidential election in New Hampshire, 2004
New Jersey
- 2004 Jersey City mayoral special election
- New Jersey Democratic primary, 2004
- United States presidential election in New Jersey, 2004
New Mexico
North Carolina
- 2004 North Carolina judicial elections
- 2004 North Carolina lieutenant governor election
- 2004 North Carolina Council of State elections
- 2004 North Carolina General Assembly election
- United States House of Representatives elections in North Carolina, 2004
- United States Senate election in North Carolina, 2004
- United States presidential election in North Carolina, 2004
North Dakota
- North Dakota Democratic caucuses, 2004
- 2004 North Dakota gubernatorial election
- United States presidential election in North Dakota, 2004
- United States Senate election in North Dakota, 2004
Ohio
Oklahoma
- Oklahoma Democratic primary, 2004
- United States presidential election in Oklahoma, 2004
- United States Senate election in Oklahoma, 2004
Oregon
Pennsylvania
- 2004 Pennsylvania Attorney General election
- 2004 Pennsylvania Auditor General election
- Pennsylvania Democratic primary, 2004
- 2004 Pennsylvania House of Representatives elections
- 2004 Pennsylvania Senate elections
- 2004 Pennsylvania state elections
- 2004 Pennsylvania State Treasurer election
- United States presidential election in Pennsylvania, 2004
- United States House of Representatives elections in Pennsylvania, 2004
- United States Senate election in Pennsylvania, 2004
Puerto Rican
Rhode Island
South Carolina
- United States presidential election in South Carolina, 2004
- South Carolina Democratic primary, 2004
- United States Senate election in South Carolina, 2004
South Dakota
- United States House of Representatives elections in South Dakota, 2004
- United States presidential election in South Dakota, 2004
- United States Senate election in South Dakota, 2004
Tennessee
Texas
- United States House of Representatives elections in Texas, 2004
- United States presidential election in Texas, 2004
United States House of Representatives
- 2004 United States House of Representatives elections
- United States House of Representatives elections in California, 2004
- United States House of Representatives elections in Georgia, 2004
- United States House of Representatives elections in Indiana, 2004
- United States House of Representatives elections in Kentucky, 2004
- 2004 Kentucky's 6th congressional district special election
- United States House of Representatives elections in New York, 2004
- 2004 North Carolina's 1st congressional district special election
- United States House of Representatives election in North Dakota, 2004
- United States House of Representatives elections in South Carolina, 2004
- United States House of Representatives elections in South Dakota, 2004
- United States House of Representatives elections in Texas, 2004
- United States House of Representatives elections in Washington, 2004
United States Senate
- 2004 United States Senate elections
- United States Senate election in Alabama, 2004
- United States Senate election in Alaska, 2004
- United States Senate election in Arizona, 2004
- United States Senate election in Arkansas, 2004
- United States Senate election in California, 2004
- United States Senate election in Colorado, 2004
- United States Senate election in Connecticut, 2004
- United States Senate election in Florida, 2004
- United States Senate election in Georgia, 2004
- United States Senate election in Idaho, 2004
- United States Senate election in Illinois, 2004
- United States Senate election in Indiana, 2004
- United States Senate election in Iowa, 2004
- United States Senate election in Kansas, 2004
- United States Senate election in Kentucky, 2004
- United States Senate election in Louisiana, 2004
- United States Senate election in Maryland, 2004
- 2004 United States Senate election in Missouri
- United States Senate election in Nevada, 2004
- United States Senate election in New Hampshire, 2004
- United States Senate election in North Carolina, 2004
- United States Senate election in North Dakota, 2004
- United States Senate election in Ohio, 2004
- United States Senate election in Oklahoma, 2004
- United States Senate election in Oregon, 2004
- United States Senate election in Pennsylvania, 2004
- United States Senate election in South Carolina, 2004
- United States Senate election in South Dakota, 2004
- United States Senate election in Utah, 2004
- United States Senate election in Vermont, 2004
- United States Senate election in Washington, 2004
- United States Senate election in Wisconsin, 2004
Utah
- United States presidential election in Utah, 2004
- United States Senate election in Utah, 2004
- 2004 Utah gubernatorial election
Washington (U.S. state)
- 2004 Washington State Executive elections
- United States presidential election in Washington, 2004
- 2004 Washington State Supreme Court elections
- United States House of Representatives elections in Washington, 2004
- United States Senate election in Washington, 2004
- 2004 Washington attorney general election
- 2004 Washington gubernatorial election
- Washington Initiative 872 (2004)
- 2004 Washington secretary of state election
- 2004 Washington State Senate elections
- Washington ballot measures, 2004
Washington, D.C.
- District of Columbia Democratic primary, 2004
- United States presidential election in the District of Columbia, 2004
West Virginia
- United States presidential election in West Virginia, 2004
- 2004 West Virginia gubernatorial election
Wyoming
Oceania
- 2004 American Samoan general election
- 2004 Cook Islands general election
- 2004 French Polynesian legislative election
- 2003 Nauruan parliamentary election
- 2004 Nauruan parliamentary election
- 2004 New Caledonian legislative election
- 2004 Palauan general election
- 2004 Pitcairn Islands general election
- 2004 Vanuatuan general election
American Samoa
Australia
- 2004 Australian Capital Territory election
- 2004 Australian federal election
- 2004 Dubbo state by-election
- 'Not happy, John!' campaign
- 2004 Queensland state election
- 2004 Results of the Australian federal election
Guam
Hawaii
New Zealand
- 2004 Dunedin mayoral election
- 2004 New Zealand local elections
- 2004 Te Tai Hauauru by-election
- 2004 Wellington City mayoral election
South America
- 2004 Bolivian gas referendum
- 2004 Brazilian municipal elections
- 2004 Venezuelan recall referendum
- 2004 Venezuelan regional elections