Abstract
This chapter presents the background situation that gave rise to Mesopotamian religious concepts, as well as the forms of the gods and their service in the classical theology of Mesopotamia. The chapter examines both the temple cult, that is, the public dimension of the religion, and the cult of the individual. It studies several supernatural beings, some active in the state pantheon, others in the sphere of family life, and discusses several literary works of religious significance. The chapter concludes its reflections on Mesopotamian religion with a short piece about the Epic of Gilgamesh, a profound Mesopotamian reflection on the meaning of life and death.