The increasing impact of globalization manifests itself in the tea sector as in every field, and it is possible to see many foreign products competing with domestic products in the market. In addition, the political and ideological strengthening of nation-states in the modern period has changed patriotism and the ethnocentric tendencies of the individual. It is very important for businesses to determine consumers' ethnocentric tendencies and to know how this tendency affects purchasing behavior. Especially for domestic companies, being able to identify the factors affecting consumer ethnocentrism can be very important in terms of gaining competitive advantage against foreign brands. Consumer ethnocentrism is the basis of the positive or negative attitudes of consumers towards foreign products. For this reason, companies should know the ethnocentrism tendencies of consumers in that market and the importance they attach to country of origin information, and direct their marketing activities accordingly, in order to both gain competitive advantage in the national market and determine their entry strategies into foreign markets. Key Words: Consumer Ethnocentrism, Purchasing Foreign Products, Patriotism