The general aspect of the national identity is understood to be a specific stability of the national or civilizational parameters and their self-identity. The problem of the national identity in the modern globalized world includes, first and foremost, the cultural identity, which enables the nation to define its place in a transnational space. However, nowadays, we should, obviously, speak about the multicultural identity as the phenomenon of peaceful coexistence of the different cultures within a certain society. The purpose of the article is to show the problem of the national identity representation as a multicultural brand of a city public space in an author’s view. The formation and revival of a national identity have been considered by the example of an architectural environment of Lviv – the city, which was developing in the crossing of different (often opposite) geopolitical priorities, permanent rise and fall of the identification projects against the backdrop of a natural amplification or forcible reduction of a national diversification. The peculiarities of a contemporary level of the national identity forming in Ukraine are determined, on the one hand, by the need of the national idea realization on the basis of Ukrainian values, but, on the other hand, by the necessity of realizing the interests of citizens of other nationality despite to their class, ethnic, religious and political definiteness. This manifests itself in the architecture and public space of the city. Today, the public space of Lviv – a mono-cultural city according to the census (89% of the population consider themselves to be Ukrainians) is treated as a multicultural project, which provides for the organic insertion or revival of the elements of other cultures in its cultural area. It is manifested in a solicitous keeping of the «inherited identities» – the Austrian or Armenian visualization of the mythology concerning the «Polish Lviv» as well as in the formation of a new dialogue about the «Jewish Lviv». Architecture plays a key role in the design of the city multicultural identity, representing the appropriate symbols, myths and values in the buildings, monuments and memorial places.