The article examines ideal models of regional identity in Ukraine – Galicia and Donbass. It is emphasised that Ukraine, having become a sovereign state and appeared on the political map of the world in 1991, faced the problem of a pronounced mosaic of regions. Individual regions were included in Ukraine already formed as distinctive entities with stable features of culture and way of life of the population. The authors emphasise that on the territory of Ukraine there coexisted a number of territorial complexes that were rather weakly connected with each other, and their subordination to various states due to frequent changes in borders determined their complex interaction. The processes of changing the political affiliation of regions actualise the identification issue, and identity in such conditions turns into a kind of demiurge of reality and can act as the main, and sometimes the only source of meanings. The declaration of independence by Ukraine actualised historically formed contradictions, previously existing mainly latently. The article proves the existence of socio-cultural regions, unique ethno-territorial communities, creating a continuum with a clearly expressed dichotomy - Donbass and Galicia. Beginning from the first years of Ukraine's independence, the image of the new independent country as a great European power, the formation of which has always been hindered and continues to be hindered by Russia, was actively introduced into the consciousness of citizens. That is, a project was promoted based on Galician nationalism (with an emphatically Russophobic basis) and the concept of the "titular Ukrainian nation". In turn, regionalist sentiments in the Eastern Ukraine showed that regional identity can have great potential for the social integration of citizens. Since the 1990s, Donbass has often acted as an object of deliberate "otherness" on the part of the Ukrainian political and cultural elite, which was a contrasting background in the context of the practices of national construction in Ukraine. The authors conclude that the formation of Ukrainian national identity was carried out in a very contradictory manner and was characterised by a clear dominance of regional identity in the Eastern Ukraine against the background of the total promotion of the Galician project, and since 2014, its promotion has been carried out by armed means. However, the violent desire to level the regional identity of the inhabitants of the Eastern Ukraine launched the process of secession of the region - the self-proclamation of the DPR and LPR and their subsequent inclusion in the Russian Federation in 2022.