This article offers an attempt at typologisation of the evolution of monetary regimes in post-communist countries (1990-2008), which is exceptionally varied by character. Two large groups have emerged: type 1 – countries, which started their reforms with a regime of fixed exchange rate and do-minating external sources of money supply, and type 2 – countries starting their reforms with a floating exchange rate and predominating internal sources of money supply. The first type is much more successful and appropriate for managing the problems of transition. Some other elements of ty-pologisation have also been suggested based on specific definitions of monetary system and monetary regime. The article also presents various approaches, which can explain the evolution of monetary re-gimes observed in the former socialist countries.