Abstract This essay presents a fresh defense of the human right of religious freedom. It addresses two versions of skepticism of this human right, one a liberal variant, which questions religious freedom’s distinctiveness, the other a post-modern variant, which questions religious freedom’s universality. The case for a universal and distinct human right of religious freedom rests upon the claim that religion is a basic human good, manifesting human dignity and warranting a human right. The essay details four respects in which religion fulfills the meaning of a basic human good. Religion is a purposive set of acts, or practices; is a definable phenomenon whose core meaning is right relationship with a superhuman power; entails both an intrinsic good and derivate goods; and is universal in its scope. Finally, crucial to the human right of religious freedom is religion’s interiority, that is, its critical involvement of will, mind, and heart.