Socialist Party
Socialist Party is the name of many different political parties around the world. All of these parties claim to uphold some form of socialism, though they may have very different interpretations of what "socialism" means. Statistically, most of these parties advocate either democratic socialism, social democracy or even Third Way as their ideological position. Many Socialist Parties have explicit connections to the labor movement and trade unions. See also Socialist International, list of democratic socialist parties and organizations and list of social democratic parties. A number of affiliates of the Trotskyist International Socialist Alternative also use the name "Socialist Party".
This list only includes parties that use the exact name "Socialist Party" for themselves, sometimes alongside the name of the country in which they operate. The list does not include political parties that use the word "Socialist" in addition to one or more other political adjectives in their names. For example, the numerous parties using the name "Socialist Workers' Party" are not included.
Active parties
| Nation | Party | Affiliation |
| Albania | Socialist Party of Albania | SI |
| Argentina | Socialist Party | SI |
| Australia | Socialist Party | ISA |
| Socialist Party | SI, PES | |
| Bolivia | Socialist Party | |
| Bosnia and Herzegovina | Socialist Party | |
| Republic of Croatia | Socialist Party | |
| Brazil | Brazilian Socialist Party | FSP |
| Bulgaria | Bulgarian Socialist Party | SI, PES |
| Canada | Socialist Party of Canada | WSM |
| Chile | Socialist Party of Chile | SI |
| Egypt | Socialist Party of Egypt | |
| France | Socialist Party | SI, PES |
| French Guiana | Guianese Socialist Party | |
| Gabon | Gabonese Socialist Party | |
| Greece | Panhellenic Socialist Movement | SI, PES |
| Guinea-Bissau | Socialist Party of Guinea-Bissau | |
| Hungary | Hungarian Socialist Party | SI, PES |
| Iraq | Assyrian Socialist Party | |
| Iraq | Kurdish Socialist Party | |
| Iceland | Icelandic Socialist Party | |
| Ireland | Socialist Party | ISA |
| Italy | Italian Socialist Party | SI, PES |
| Latvia | Socialist Party of Latvia | |
| Lithuania | Socialist Party of Lithuania | |
| Macedonia | Socialist Party of Macedonia | PES |
| Malaysia | Socialist Party of Malaysia | |
| Mexico | Socialist Party of Mexico | |
| Moldova | Socialist Party of Moldova | |
| Morocco | Socialist Party | |
| Netherlands | Socialist Party | |
| Nicaragua | Nicaraguan Socialist Party | |
| Peru | Socialist Party | |
| Poland | Polish Socialist Party | |
| Portugal | Socialist Party | SI, PES |
| Romania | Romanian Socialist Party | |
| Rwanda | Rwandese Socialist Party | |
| San Marino | Socialist Party | |
| Serbia | Socialist Party of Serbia | |
| Senegal | Socialist Party of Senegal | SI |
| Spain | Spanish Socialist Workers' Party | PES |
| Spain | Socialist Party of the Basque Country | SI, PES |
| Spain | Socialists' Party of Catalonia | PES |
| Spain | Socialists' Party of Galicia | PES |
| Spain | Majorca Socialist Party | EFA |
| Sri Lanka | Socialist Party of Sri Lanka | L5I |
| Sweden | Socialist Party | USFI |
| Switzerland | Swiss Socialist Party | SI, PES |
| Tajikistan | Socialist Party of Tajikistan | |
| Timor-Leste | Socialist Party of Timor | |
| Tunisia | Socialist Party | |
| Ukraine | Socialist Party of Ukraine | SI |
| United Kingdom | Socialist Labour Party | |
| United Kingdom | Socialist Party | CWI |
| United Kingdom | Socialist Party of Great Britain | WSM |
| United Kingdom | Scottish Socialist Party | EACL |
| United States | Socialist Party USA | |
| Uruguay | Socialist Party of Uruguay | SI |
| Yemen | Yemeni Socialist Party | SI |
Former parties
These are parties which no longer exist or have changed their name from "Socialist Party".| Nation | Party |
| Austria | Socialist Party of Austria |
| Australia | Socialist Party of Australia Socialist Party of Australia |
| Belarus | Belarusian Socialist Party |
| Belgium | Belgian Socialist Party Socialist Party |
| Bolivia | Socialist Party |
| Burkina Faso | Burkinabè Socialist Party |
| Canada | Socialist Party of North America Socialist Party of Canada Socialist Party of Ontario |
| Croatia | Socialist Party of Croatia |
| Cyprus | Socialist Party of Cyprus |
| Ecuador | Ecuadorian Socialist Party |
| Egypt | Egyptian Socialist Party |
| France | French Socialist Party French Socialist Party Socialist Party of France |
| Iceland | Socialist Party |
| India | Socialist Party |
| Indonesia | Socialist Party of Indonesia Socialist Party of Indonesia |
| Ireland | Socialist Party of Ireland Socialist Party of Ireland |
| Italy | Italian Socialist Party Socialist Party |
| Japan | Japan Socialist Party |
| Netherlands | Socialist Party |
| New Zealand | New Zealand Socialist Party |
| Peru | Socialist Party of Peru |
| Poland | Silesian Socialist Party |
| Portugal | Portuguese Socialist Party |
| Puerto Rico | Puerto Rican Socialist Party Socialist Party |
| Romania | Socialist Party of Romania |
| San Marino | Sammarinese Socialist Party |
| Senegal | Senegalese Socialist Party |
| South Korea | Socialist Party |
| Spain | Andalusian Socialist Party |
| Sweden | Socialist Party |
| Thailand | Socialist Party of Thailand |
| Togo | Pan-African Socialist Party |
| Trinidad | Caribbean Socialist Party |
| United Kingdom | British Socialist Party |
| United States | Socialist Party of America |
| Vietnam | Socialist Party of Vietnam |