This article is about the 1918-1938 Communist Party of Poland. For 1942-1948 party, see Polish Workers' Party

Polish Workers' Party

The Polish Workers' Party was a communist party in Poland from 1942 to 1948. It was founded as a reconstitution of the Communist Party of Poland, and merged with the Polish Socialist Party in 1948 to form the Polish United Workers' Party.-History:...

 (Polska Partia Robotnicza, PPR). For 1948-1989 party, see Polish United Workers' Party

Polish United Workers' Party

The Polish United Workers' Party was the Communist party which governed the People's Republic of Poland from 1948 to 1989. Ideologically it was based on the theories of Marxism-Leninism.- The Party's Program and Goals :...

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The Communist Party of Poland is a historical communist party

Communist party

A political party described as a Communist party includes those that advocate the application of the social principles of communism through a communist form of government...

 in Poland

Poland

Poland , officially the Republic of Poland , is a country in Central Europe bordered by Germany to the west; the Czech Republic and Slovakia to the south; Ukraine, Belarus and Lithuania to the east; and the Baltic Sea and Kaliningrad Oblast, a Russian exclave, to the north...

. It was a result of the fusion of Social Democracy of the Kingdom of Poland and Lithuania

Social Democracy of the Kingdom of Poland and Lithuania

The Social Democracy of the Kingdom of Poland and Lithuania was a Marxist political party founded in 1893. Its original name was the "Social Democracy of the Kingdom of Poland" and it eventually became part of the Communist Workers Party of Poland...

 (SDKPiL) and the Polish Socialist Party-Left in the Communist Workers Party of Poland (Komunistyczna Partia Robotnicza Polski, KPRP).
The KPRP was founded on 16 December 1918 as the result of the fusion of the Social Democratic Party of the Kingdom of Poland and Lithuania (SDKPiL) and the Polish Socialist Party-Lewica (Left) on the basis of the program of the former group.