Workers' Councils in Poland or Councils of Workers' Delegates in Poland (Polish: Rady Delegatów Robotniczych w Polsce) were representative organs of workers and peasants, set up towards the end of the First World War on Polish territories.
The main organisations behind the initiative were the Social Democracy of the Kingdom of Poland and Lithuania and the Polish Socialist Party – Left, which soon merged to form the Communist Workers Party of Poland. Other workers' organisations and parties competed for influence within the councils as well, including the Polish Socialist Party, the Bund in Poland and the National Workers' Union.
Due to significant disputes over the political and economic future of the newly independent Poland, the councils failed to create an executive committee. Nevertheless, over 100 workers' councils operated in Poland in years 1918–1919, assembling around 500,000 workers and peasants. The most numerous and radical councils were located in Kraśnik, Lublin, Płock, Warsaw, Zamość and Zagłębie Dąbrowskie; some set up their own military self-defence units, the Red Guards. A short-lived Republic of Tarnobrzeg was proclaimed on 6 November 1918.