The article examines the issues related to the consideration of practical aspects of interior design of restaurant business establishments. It is noted that, despite all the difficulties and general tension in Ukraine, the hospitality sector continues to work and develop. At this, a more positive and dynamic situation is observed in the western and central regions of Ukraine, as well as the city of Kyiv. It is emphasized that one of the tools for the competitiveness of restaurant business establishments is their image, unique style, interior design features. Design has already become an integral part of many spheres of human life, which allows us to talk about its significant role in the life of a person and society. Design elements should correspond to the specifics and strategy of the institution in order to as much as possible convey the idea and be competitive. A well-chosen and developed design can bring the institution many advantages. Design influences factors such as: the identity of the company, attracting the best employees and their retention, recognition and unforgettable impressions of the establishment. Particular attention in the article is paid to ethnic design. According to the author, ethnodesign should be considered as a project activity to create modern forms of the material environment using traditional elements of the culture of a certain ethnic group. Ethnic design corresponds to the semantic and aesthetic characteristics of a particular ethnic culture, uses the national flavor characteristic of the traditions of a particular people. The article proves with arguments that ethno-restaurants-museums are becoming a common format in Ukraine. Such establishments not only offer dishes of ancient national cuisine, but also hold various cultural events and festivals. Examples of well-known ethno-restaurants-museums in different regions of Ukraine are given, among which the leaders are the western Ukrainian regions.