Summary. The purpose of the study is to reveal the activities of credit unions in Drohobych region in the interwar period, to show their role in the economic protection of the Ukrainian population of Galicia in interwar Poland. The research methodology is based on the principles of historicism, systematicity, scientificity, authorial objectivity, as well as the use of general scientific and special-historical methods. The scientific novelty lies in the study of the development of credit cooperation in Drohobych in the 1920‒1930’s. Conclusions. An important place in the cooperative movement of Eastern Galicia in the interwar period belonged to credit cooperatives. In 1938, there were 25 credit cooperatives of Raiffeisen type (rural associations) and Ukrainian banks (Schulze-Delich city cooperatives) in Drohobych region, which were united around Central Bank (Central Cooperative Bank of "Krai Credit Union"). The capital of these institutions consisted of shares of members and contributions of the population. Credit cooperation protected Ukrainians, increased their solvency and economic independence, national consciousness. The main financial institution of the Ukrainian credit cooperative was Central Bank. With well-developed cooperation, Ukrainians could work effectively even under unfavourable conditions and hostility from the Polish occupation regime. The cooperation protected not only the material but also the spiritual needs of Ukrainian citizens, it was a natural manifestation of social and economic self-organization of the people, a source of its cultural self-development. The financial and credit system contributed to the development of cooperation through the organization of affordable credit for the population, the facilitation of mutual relations between national organizations and the strengthening of the legal status of cooperation.