Based on the empirical research, the article considers the correlation of national and ethnic identities of the youth of Saint Petersburg. The authors’ conclusions are based on a series of sociological studies conducted in 1996, 2011 and 2019 by the Laboratory of Ethnic Sociology and Psychology of the Faculty of Sociology of the Saint Petersburg State University under the guidance of Z.V. Sikevich and also on the data of other researchers studying similar issues in different Russian regions. The authors present their interpretation of the structure of national identity and typology of ethnic identities; consider the following forms of correlation of national and ethnic identities - dominant ethnic identity, ethnic radicalism, dominant national identity, ethno-national radicalism, ethnic and national indifference; focus on the rank of national identification in the system of group identities and on the indicators of national consolidation; use content analysis to identify the symbolic interpretations of the wo