This publication contains the comparison of potato cultivar structure in Poland and in the EU countries of with the highest seed potato production: Netherlands, Germany, France, United Kingdom and Czech Republic. In spite of reproduction cultivars, nearly 50% seed production includes only dozen of leading cultivars. Differentiation in local preferences of particular countries cause small similarities in the structure of potato cultivars. Potato cultivars bred in the Netherlands are the majority of cultivars in all investigated countries. The structure of potato cultivars in Poland is similar mainly to the structure in Germany and Czech Republic.