The paper analyses the use of toponyms from the territory of the contemporary Czech Republic in England/Britain since the Early Middle Age up to the 1950's. Great deal of attention is devoted especially to the use of German and Czech forms of toponyms and their relationships. The author comments on the effort of the Czechoslovac government to establish the Czech forms in Britain (German forms had been predominantly used by this time). However, the transition from German endonyms to Czech endonyms influenced the English exonyms only exceptionally (e.g. Bohemia, Moravia, Silesia, Prague).