Events in the year 2021 in Poland. The Sejm assigned several patrons for year of 2021, so that 2021 is to be known as the Stanisław Lem Year, Stefan Wyszyński Year, Cyprian Norwid Year, Krzysztof Kamil Baczyński Year, Tadeusz Różewicz Year, as well as the Constitution of 3 May Year in Poland.