| Country |
Party |
Political orientation |
Reason defunct |
|---|
| Australia |
Workers Party |
Libertarian |
|
| Bahamas |
Workers' Party |
|
|
| Barbados |
Workers Party of Barbados |
Marxist |
Defunct due to unpopularity |
| Brazil |
Worker's and Peasant's Bloc |
|
1937–1930. |
| Brazil |
Work's National Union |
|
1945–1948. |
| Brazil |
Nationalist Workers' Party |
|
1989. |
| Brazil |
Nationalist Brazilian Workers' Party |
|
1989–1992.
Merged into Labour Party of Brazil. |
| Brazil |
General Workers' Party |
|
1995–2003.
Merged into Liberal Party. |
| Cambodia |
Workers' Party of Kampuchea (1960–1966) |
Communist |
Renamed to Communist Party of Kampuchea in 1966. Dissolved in 1981. |
| Canada |
Workers' Party of Canada (1922–1924) |
Communist |
Legal face of the illegal Communist Party until the government's ban was lifted. |
| Canada |
Workers' Party of Canada (1934–1937) |
Trotskyist |
Dissolved upon entry into the Co-operative Commonwealth Federation. Reformed in 1939 as the Socialist Workers League. |
| Canada |
Revolutionary Workers Party (1946–1952) |
Trotskyist |
Entered the Co-operative Commonwealth Federation. |
| Croatia |
Croatian Workers Party (1906–1918) |
Left-wing populist |
|
| Czech Republic |
Workers' Party |
National Socialist |
Banned in 2010 by the Supreme Administrative Court of the Czech Republic |
| Estonia |
Estonian Workers' Party |
Communist |
|
| Ethiopia |
Workers' Party of Ethiopia |
Marxist–Leninist |
Overthrown in 1991 |
| Finland |
Socialist Workers' Party of Finland |
Marxist |
Banned in 1923 |
| France |
Workers' Party (France, 1991–2008) |
Trotskyist |
|
| Germany |
German Workers' Party |
Nationalist |
Renamed the National Socialist German Workers' Party in 1920 |
| Germany |
National Socialist German Workers' Party |
National Socialist |
Dissolved and banned in 1945 |
| Germany |
Workers' Party of Germany |
Juche |
|
| Hungary |
Hungarian Workers' Party |
National Socialist |
Dissolved and regrouped |
| Ireland |
Irish Workers' Party |
Communist |
Merged with the Communist Party of Northern Ireland to reconstitute the all-Ireland Communist Party of Ireland in 1962 |
| Israel |
Workers Party of Eretz Israel (Mapai) |
Labor Zionism |
Merged into the Israeli Labor Party |
| Israel |
United Workers Party (Mapam) |
Labor Zionism |
Merged into Meretz |
| Israel |
Workers of Agudat Yisrael |
Haredi Judaism |
|
| Korea |
Workers' Party of North Korea
Workers' Party of South Korea |
Communist
Communist |
Merged to form the Workers' Party of Korea in 1949 |
| Latvia |
Workers' Party |
Left-wing politics |
|
| Mexico |
Mexican Workers' Party |
Social democratic |
Merged with the Unified Socialist Party of Mexico to form the Mexican Socialist Party in 1987 |
| New Zealand |
Workers Party of New Zealand |
Marxist |
Renamed to Fightback in 2013 |
| North Macedonia |
Workers Party |
Left-wing politics |
|
| Poland |
Polish Workers' Party |
Communist |
Merged to form the Polish United Workers' Party in 1948 |
| Poland |
Polish United Workers' Party |
Marxist–Leninist |
Self-dissolved in 1990 |
| Poland |
Zionist Workers Party |
|
| Romania |
Romanian Workers' Party |
Communist |
Renamed the Romanian Communist Party in 1965 |
| South Africa |
Workers Party of South Africa |
Trotskyist |
Banned in 1953 |
| Spain |
Workers' Party of Marxist Unification |
Marxist |
Dissolved in 1980 |
| Trinidad and Tobago |
Workers and Farmers Party |
Marxist |
Defunct due to unpopularity |
| Trinidad and Tobago |
British Empire Citizens' and Workers' Home Rule Party |
Garveyism |
Popularly known as the Butler Party, defunct due to unpopularity |
| Trinidad and Tobago |
Progressive Workers Democrat Movement |
|
Defunct due to unpopularity |
| Turkey |
Workers' Party |
Scientific socialist |
Renamed the Patriotic Party in 2015 |
| United Kingdom |
International Leninist Workers Party |
Marxist–Leninist |
Dissolved into the Socialist Labour Party in 1996 |
| United Kingdom |
Workers Party of Scotland |
Marxist–Leninist |
|
| United States |
Democratic Workers Party |
Marxist–Leninist |
Dissolved in 1986 |
| United States |
Workers Party |
Trotskyist |
Renamed the Independent Socialist League in 1949 |
| United States |
American Workers Party |
Musteite |
Merged into Workers Party of the United States |
| United States |
Workers Party of America |
Marxist–Leninist |
Became Communist Party USA in 1929. |
| United States |
Workers Party of the United States |
Trotskyist |
Absorbed into the Socialist Party of America in 1936 |
|
