The regulations concerning the definition of the official language at the constitutional level have not been unified in the constitutions of European Union countries. The importance of a language, the level of its protection, and care for the language are immanently connected with the cultural awareness of a given nation, its historical conditions, national aspirations, and other factors allowing to distinguish it from other subjects. The number of languages used in individual regions of the EU depends on social migrations, the uniformity of nationalities, historical conditions, as well as the level and directions of patriotic aspirations in a given society. Therefore, the attempts to impose on the members of the EU the adoption of the unified solutions, which de facto imply - in the case of most of them - the need to amend the constitution, is a demand that now seems completely unfeasible.