Polski Związek Kulturalno-Oświatowy (commonly known as PZKO; Czech: Polský kulturně-osvětový svaz, meaning "Polish Cultural and Educational Union") is a Polish organization in the Czech Republic. It represents the Polish minority in the Czech Republic together with the Congress of Poles. PZKO is the largest Polish organization with largest membership in the Czech Republic, although the number of members is decreasing as a result of demographic decline of the Polish community. Source: Wikipedia (en)