Abstract. The work is analysing the language situation in Czech communities in Crimea and Novgorodovka village. Fieldwork data from those communities and archive material studies present main reasons of migration from Czech lands to imperial Russia and development of Czech settlements in southern Russian regions. The description of Russian and Ukrainian influence on Czech language phenomena and transformations on all language levels is given, as well as some features of Northeast Bohemian preserved in spoken Czech of Crimean settlers. Key words: Crimean Czech, Crimea, Taurida governorate, Alexandrovka, Bohemka, Tabor, Carekvich, Novgorodkovka, Czechohrad, Czech community, ethnic minority, language community, migration, pronunciation deviation, Northeast Bohemian, cross- language interference.