EN
The notion of a public interest in administrative law science and in the administration science occupies the central position in the notion chart. Consequently, it is also the main notion of public protection of competition. The legislator has not decided to present a definition of “the public interest” in the Competition and Consumer Protection Law Act. As a result, interpretation of the concept is largely dependent on the judicature. The aim of the paper is to analyse the notion of a public interest and its interpretation both in science and in practice of law application.