The master's thesis is devoted to the study of stereotypes in the United States of America based on a combined cognitive, linguistic, cultural and discursive approach. The scientific novelty of the research results is determined by the fact that the peculiarities of ethnic stereotypes in interethnic communication are analyzed in terms of their role as social regulators. The dissertation examines the conditions of formation and functioning of ethnic stereotypes, their impact on interethnic relations and social behavior. The relationship between ethnic stereotypes and socio-political, economic and historical factors that influence interethnic interaction is studied. Positive and negative aspects of ethnic stereotypes, their role in maintaining traditional values and features of national culture, as well as their ability to generate interethnic conflicts are identified. The findings emphasize the importance of understanding and organizing these stereotypes to promote intercultural understanding and positive relations between ethnic groups. Ultimately, this study highlights the importance of multicultural policies and initiatives in addressing the challenges and opportunities arising from ethnic and cultural diversity in modern societies.