National philosophy as a research topic in relation to Ukraine has its peculiar features. The national philosophy, in this case, cannot signify only Ukrainian philosophy, strictly ethnically limited (meeting either geographic or mental criteria). This entails an inevitable question of delimitation between Russian and Ukrainian philosophies. The only way to solve this unavoidable question is to recognize the duality of national consciousness as well as cultural parallelism, suggested by V. Zenkovsky for solving problems in relationships between Russia and Ukraine.