The article presents the diagnosis of the initial level of multicultural education among students-future teachers. The purpose of the study is to present the results of diagnostics of the initial level of multiculturalism among students-future teachers in the regional aspect (Sevastopol city). Research objectives: analysis of the theoretical basis of the study, presentation of the relevance of the study, development of diagnostics of the initial level of formation of multiculturalism of students of the educational institution-future teachers. The study used empirical methods to study the level of formation of multiculturalism among students-future teachers in the regional aspect, in addition, interviews, surveys and questionnaires of students were used. The study was regional in nature: it was conducted in the city of Sevastopol. The study revealed a low level of knowledge about nationalities and representatives of various religions in the region. The attitude of respondents towards non-Believers and representatives of other nationalities is not always tolerant. It has been revealed that students have a biased attitude towards certain nationalities. The subject of the research is the multiculturalism of students – future teachers. The theoretical significance of the research lies in the fact that the problem of improving the professionalism of a higher school teacher is considered in the context of the increasing demands and needs of social practice for competitive workers. The practical significance of the research results lies in the fact that its results can be useful to educators dealing with issues of multiculturalism, citizenship, working in a multicultural society, as well as for developing a research program on the formation of multicultural qualities of future teachers in the city of Sevastopol. The prospects for further research are the development of tools for the multicultural education of future teachers in the city of Sevastopol.