The close connection between “interculturality” and “dialogue” is the common thread running through the debate on policies for the inclusion of diversity, represented by the phrase “intercultural dialogue”. The analysis of the legal and political instruments of institutional dialogue – provided for both in Italian law in relation to religious denominations and in European Union law – as well as forms of dialogue on human rights or interreligious dialogue, allow us to explore the distinctive features of 'intercultural dialogue' compared to other forms of dialogue and interaction, precisely because of its potential for integrating differences. The process of diversity inclusion triggered by “intercultural dialogue” is also increasingly affecting the legal field with a view to training future legal practitioners to face the challenges posed by multi-religiousness and interculturalism. In this perspective, knowledge of religious rights constitutes one of the new frontiers of legal knowledge in the context of a fruitful “dialogue between rights” that is achieved through the interpretation of legal data in an intercultural sense, with a view to building a concrete, cohesive society that respects the principles of freedom and equality in diversity, which are the fundamental principles of Western constitutionalism.