Multiculturalism is a word we often hear when we talk about minority rights, immigration, etc., but it is very difficult to say exactly what is meant by it. Many theorists have presented us withtheir definitions of multiculturalism. It is for this reason that many critiques of multiculturalism havebeen developed that seek to portray its limitations in theory and practice. Altogether, we can say that multiculturalism is a term that icludes regulation policies for cultural diversity that consider each culture equally valuable and seek to create a place where they can live side by side. In this paper, we will first try to explain the basic features of multiculturalism, then outline the most important theoretical considerations of the most important authors, then describe the most significant criticisms associated with it, and finally provide an overview of multiculturalism in Europe through the example of 4 countries that were in or still are part of the discourse on multiculturalism. We will also say something about the future of multiculturalism in Europe and its related notion of interculturalism, which is imposed as its logical upgrade.