Tasks implemented in organizations often require collaboration in teams consisting of representatives of different cultures. The interpenetration and interaction of people of different cultures is a natural consequence of the globalization process. Challenges related to multiculturalism can result in both the advantage and the failure of the team. The advantages of multicultural teams include getting more ideas and a wider perspective. On the other hand, a common problem of multicultural teams is a lack of understanding for other cultures, which leads to building distance and conflicts. Therefore, teams of representatives of many nationalities require an understanding of cultural differences and high competences of leaders of such teams to be able to draw on diversity. That is why choosing the right leader is one of the key factors. The purpose of this article is to bring cultural competences closer, to present multicultural teams, the impact of cultural diversity and a leadership position on their effectiveness.