The article was published in Polish in "Studia Regionalne i Lokalne", 1/2005   Metropolisation is one of the most dynamic processes of contemporary world, changing the existing settlement patterns and creating new relations between large cities. In the recent years, metropolisation has also come to include Central and Eastern European countries. The paper looks at the role of these countries in the European metropolitan network, and describes the process of the emergence of Polish metropolises, in addition to their social and spatial transformation.