In an organization, the communication problems may occur even if the employees come from the same nation. The individual is influenced by multiple levels of culture, each of them contributing in some way to shaping his cultural identity. National culture, which exerts the greatest influence, may be the basis for creating the cohesion in the organization, beside other values-as its instrument, if it is not the case of a multicultural company. In the latter case, managers are tasked to develop a strong organizational culture, able to ensure the employees’ integration and organization’s adaptation to the environment. The objectives of this article consist in presentation and descriptions of these levels of culture, as well as in suggestion of the induced influences. The qualitative analysis based on deductive-type explanations emphasizes that organizational communication barriers are generated by these levels of culture that, through specific combinations, induce differences between individuals.