This chapter provides an overview of freedom of religion and belief in the United States and draws a comparison with the preceding two chapters on France and England. It begins by exploring the US constitutional arrangements for church–state relations by looking at the religion clauses of the First Amendment of the Constitution and their interpretation by the Supreme Court and some of the federal courts. It then moves on to discussing manifestation of religion at school and in the workplace following the themes of the previous two chapters. The chapter concludes with some reflection on the country approaches and the extent to which each model of state–religion relations protects manifestation of religion and belief.