The Labour Party (Polish: Stronnictwo Pracy, SP) was a political party in Poland.
The party was established in February 1989 as an alternative to the Polish United Workers' Party–Solidarity political duopoly. It had its roots in the Christian Democratic Political Theory Club, which had been established the year before by members of the Association for the Promulgation of Catholic Social Science. It was initially known as the Christian Democratic Labour Party (Chrześcijańsko-Demokratyczne Stronnictwo Pracy, ChDSP), and claimed to be the successor to the Labor Party that was dissolved after World War II. It was initially headed by Władysław Siła-Nowicki, and it was hoped that his prestige would help popularise the party. Two members were elected to Parliament on the Solidarity Citizens' Committee list in the 1989 parliamentary elections; Marek Rusakiewicz became a member of the Sejm and Walerian Piotrowski was elected to the Senate.
However, the party failed to gain significant support, and never attracted more than 2,000 members. It split over whether to support Siła-Nowicki or Solidarity leader Lech Wałęsa in the 1990 presidential elections, with the Wałęsa-supporting faction breaking away to form the Christian Democratic Party "Union". The remaining members of the ChDSP subsequently contested the 1991 parliamentary elections as part of the Christian Democracy alliance that won five seats.Stefan Pastuszewski was the party's sole