| Country | Centre-left/Left-wing major party
 | Centre-right/Right-wing major party
 | Other major party | Notes | 
| Albania | Socialist Party of Albania | Democratic Party of Albania |  |  | 
| Algeria | National Liberation Front | National Rally for Democracy |  |  | 
| Andorra | Social Democratic Party | Democrats for Andorra |  |  | 
| Angola | MPLA | UNITA |  |  | 
| Argentina | Radical Civic Union | Republican Proposal | Justicialist Party | The Justicialist Party has produced both leftist and rightist presidents; Néstor Kirchner (2003–2007) and Cristina Fernández (2007–2015) were leftist, while fellow Justicialist Carlos Menem (1989–1999) was seen as neoliberal.[2] | 
| Armenia |  | Prosperous Armenia | Republican Party of Armenia |  | 
| Australia | Australian Labor Party | Liberal Party of Australia |  |  | 
| Austria | Social Democratic Party of Austria | Austrian People's Party | Freedom Party of Austria |  | 
| Azerbaijan |  | New Azerbaijan Party |  |  | 
| The Bahamas | Progressive Liberal Party | Free National Movement |  |  | 
| Bangladesh | Bangladesh Awami League | Bangladesh Nationalist Party | Jatiya Party |  | 
| Barbados | Barbados Labour Party | Democratic Labour Party |  |  | 
| Bosnia and Herzegovina | Alliance of Independent Social Democrats | Party of Democratic Action |  |  | 
| Brazil | Workers' Party | Brazilian Social Democracy Party | Brazilian Democratic Movement Party |  | 
| Bulgaria | Bulgarian Socialist Party | Citizens for European Development of Bulgaria |  |  | 
| Cape Verde | African Party for the Independence of Cape Verde | Movement for Democracy |  |  | 
| Cambodia |  | Cambodia National Rescue Party | Cambodian People's Party |  | 
| Canada | Liberal Party of Canada | Conservative Party of Canada | New Democratic Party |  | 
| Colombia | Colombian Liberal Party | Colombian Conservative Party | Social Party of National Unity |  | 
| Costa Rica | Citizens' Action Party (PAC) | National Liberation Party (PLN) | Broad Front | PLN defines itself as "centrist" but is generally considered to be more right-wing than PAC. | 
| Croatia | Social Democratic Party of Croatia | Croatian Democratic Union |  |  | 
| Czech Republic | Czech Social Democratic Party | Civic Democratic Party[3] | ANO 2011 |  | 
| Cyprus | Progressive Party of Working People | Democratic Rally |  |  | 
| Denmark | Social Democrats | Venstre | Danish People's Party | The Danish People's Party is second largest party. | 
| East Timor | National Congress for Timorese Reconstruction |  | Revolutionary Front for an Independent East Timor |  | 
| Ecuador | PAIS Alliance | Creating Opportunities |  |  | 
| El Salvador | Farabundo Martí National Liberation Front | Nationalist Republican Alliance | Unity Movement |  | 
| Estonia | Estonian Centre Party | Estonian Reform Party |  |  | 
| European Union | Party of European Socialists | European People's Party |  |  | 
| Faroe Islands | Republic Social Democratic Party
 | Union Party People's Party
 |  |  | 
| Finland | Social Democratic Party of Finland | National Coalition Party | Centre Party Finns Party
 |  | 
| France | Socialist Party | The Republicans |  |  | 
| Georgia | Georgian Dream | United National Movement |  |  | 
| Germany | Social Democratic Party of Germany | Christian Democratic Union |  | The Free Democratic Party was a major party, having been in coalition with the ruling parties for most of the post-war era. However, the party failed to meet the election threshold at the German federal election, 2013 and is not currently represented in the Bundestag. | 
| Greece | Coalition of the Radical Left (Syriza) | New Democracy |  | Until the 2012 legislative election, Pasok was the major party of the centre-left. | 
| Gibraltar | Gibraltar Socialist Labour Party | Gibraltar Social Democrats |  |  | 
| Hong Kong | Democratic Party | Democratic Alliance for the Betterment and Progress of Hong Kong |  |  | 
| Hungary | Hungarian Socialist Party | Fidesz – Hungarian Civic Union | Jobbik |  | 
| Iceland | Social Democratic Alliance | Independence Party | Progressive Party |  | 
| India | Indian National Congress | Bharatiya Janata Party | All India Anna Dravida Munnetra Khazgam |  | 
| Indonesia | Indonesian Democratic Party-Struggle | Golkar Party | Gerindra Party and Democratic Party |  | 
| Ireland | Labour Party | Fine Gael | Fianna Fáil | Fianna Fáil received the largest share of the vote in Ireland from 1932 to 2011, when it was returned in third place with just 17.4% of the vote. | 
| Israel | Israeli Labor Party | Likud |  |  | 
| Iran | Reformists | Conservatives |  |  | 
| Italy | Democratic Party | Forza Italia | Five Star Movement | Until 1992 the major party was Christian Democracy, which had been in government for five decades; the second party was the Italian Communist Party. | 
| Japan | Democratic Party | Liberal Democratic Party |  |  | 
| Jamaica | People's National Party | Jamaica Labour Party |  |  | 
| Kazakhstan |  |  | Nur Otan |  | 
| Kirgyzstan | Social Democratic Party of Kyrgyzstan | Ata-Zhurt |  |  | 
| Kosovo |  | Democratic League of Kosovo | Democratic Party of Kosovo |  | 
| South Africa | African National Congress | Democratic Alliance |  |  | 
| South Korea | Democratic United Party | Saenuri Party |  |  | 
| Latvia | Social Democratic Party "Harmony" | Unity | Union of Greens and Farmers |  | 
| Liechtenstein |  | Progressive Citizens' Party, Patriotic Union
 |  |  | 
| Lithuania | Lithuanian Social Democratic Party | Homeland Union | Labour Party |  | 
| Luxembourg | Luxembourg Socialist Workers' Party | Christian Social People's Party | Democratic Party |  | 
| Macedonia | Social Democratic Union of Macedonia | VMRO-DPMNE |  |  | 
| Malaysia | Pakatan Rakyat | Barisan Nasional |  |  | 
| Malta | Labour Party | Nationalist Party |  |  | 
| Mexico | Institutional Revolutionary Party | National Action Party | Party of the Democratic Revolution |  | 
| Monaco |  | Rally & Issues | Union Monégasque |  | 
| Moldova | Party of Socialists of the Republic of Moldova Party of Communists of the Republic of Moldova
 | Liberal Democratic Party of Moldova |  |  | 
| Mongolia | Mongolian People's Party | Democratic Party |  |  | 
| Montenegro | Democratic Party of Socialists | Democratic Front |  |  | 
| Mozambique | FRELIMO | RENAMO |  |  | 
| Nagorno Karabakh | Armenian Revolutionary Federation | Free Motherland | Democratic Party of Artsakh |  | 
| Nepal | Communist Party of Nepal (Union Marxist Leninist) | Nepali Congress | Unified Communist Party of Nepal (Maoist) |  | 
| Netherlands | Labour Party | People's Party for Freedom and Democracy | Christian Democratic Appeal |  | 
| New Zealand | Labour Party | National Party |  |  | 
| Nigeria | All Progressives Congress | People's Democratic Party |  |  | 
| Northern Cyprus | Republican Turkish Party | National Unity Party |  |  | 
| Norway | Labour Party | Conservative Party | Progress Party |  | 
| Pakistan | Pakistan People's Party | Pakistan Muslim League (Nawaz) |  |  | 
| Paraguay |  | Colorado Party | Authentic Radical Liberal Party |  | 
| Peru | Peru Wins | Popular Force |  |  | 
| Puerto Rico | Popular Democratic Party | New Progressive Party |  | Puerto Rico is the only territory within the jurisdiction of USA with different major parties from the rest of the USA. | 
| Poland |  | Civic Platform | Law and Justice |  | 
| Portugal | Socialist Party | Social Democratic Party |  |  | 
| Republic of China | Democratic Progressive Party | Kuomintang |  |  | 
| Romania | Social Democratic Party | National Liberal Party |  |  | 
| Russia | Communist Party of Russia | United Russia |  |  | 
| San Marino | Party of Socialists and Democrats | Sammarinese Christian Democratic Party |  |  | 
| Serbia | Socialist Party of Serbia | Serbian Progressive Party |  |  | 
| Seychelles | People's Party | Seychelles National Party |  |  | 
| Singapore | Workers' Party of Singapore | People's Action Party |  |  | 
| Slovakia | Direction – Social Democracy | Freedom and Solidarity |  |  | 
| Slovenia | Modern Centre Party | Slovenian Democratic Party |  |  | 
| Spain | Spanish Socialist Workers' Party | People's Party | Podemos |  | 
| Sri-Lanka | United National Party | United People's Freedom Alliance | Janatha Vimukthi Peramuna & Tamil National Alliance |  | 
| Sudan |  | National Congress |  |  | 
| Suriname | National Democratic Party | Progressive Reform Party |  |  | 
| Sweden | Swedish Social Democratic Party | Moderate Party |  |  | 
| Switzerland | Social Democratic Party of Switzerland | Swiss People's Party | Christian Democratic People's Party of Switzerland & FDP.The Liberals | The magic formula system means that these parties are guaranteed representation in the Swiss Federal Council | 
| Thailand | Pheu Thai Party | Democrat Party |  |  | 
| Trinidad and Tobago | People's National Movement |  | United National Congress |  | 
| Turkey | Republican People's Party | Justice and Development Party |  |  | 
| Ukraine | Opposition Bloc | Petro Poroshenko Bloc "Solidarity" | People's Front |  | 
| United Kingdom (Great Britain)[4] | Labour Party | Conservative Party | Liberal Democrats Plaid Cymru (major party in Wales)
 Scottish National Party (major party in Scotland)
 United Kingdom Independence Party (major party in England and Wales)
 | From the 17th through mid-19th century, the Whigs and the Tories were the major parties. Nationalist movements have major party status within the Home Nations of the UK.[4]
 | 
| United Kingdom (Northern Ireland)[4] | Sinn Féin (republican) | Democratic Unionist Party (unionist) | Alliance Party (non-sectarian) Social Democratic and Labour Party (republican)
 Ulster Unionist Party (unionist)
 | Despite being part of the UK, the main parties in Northern Ireland differ from those in Great Britain. Sinn Féin does not take its seats in the House of Commons.
 | 
| United States | Democratic Party | Republican Party |  | At various times during the 18th and 19th centuries, the Federalist Party, Democratic-Republican Party, and Whig Party were all major. | 
| Uruguay | Broad Front | National Party |  |  |