The purpose of this study is to critically examine the nature of interethnic interactions in the Republic of Kazakhstan through the lens of the cultural aspect at the institutional level, as well as to identify the model of interethnic relations in Kazakhstan. As research methods, the study involved diachronic and synchronistic methods corresponding to cultural studies, which allowed considering the current state of interethnic relations in the country by aspects and systemically, considering historical-geographical, socio-economic, cultural, and linguistic contexts. The study also employed a psychological approach, which allowed considering the development of interethnic relations from the standpoint of subjective cultural mechanisms. As a result, a descriptive model of interethnic relations in the Republic of Kazakhstan was formulated, and the study identified the crisis moments affecting the full-fledged development of coexisting ethno-religious microsociums, native people and immigrants, in the multilingual and multicultural system of the republic.