Accused of fostering a weakening of our shared values and identities, the idea of multiculturalism has become a target amongst the public opinion of numerous societies. In this article, we analyze in four steps the recurrent claim of a connection between multiculturalism and relativism. First, we outline a conceptual analysis of relativism to assess, in the following part, if the concept of multiculturalism is indeed relativistic in its foundations, through the political philosophy that gave rise to it. We then assess if the practice of multiculturalism is indeed relativistic in its application, through public policies and the law. Finally, we discuss whether multiculturalism, although not strictly speaking relativistic, nonetheless is conducive to an imbalance of the law brought about by an unwarranted primacy given to the freedom of religion.