This edited volume is the result of a symposium held at Freie Theologische Hochschule Gießen in 2025 and represents an important reference work on religious freedom in the German-speaking world. It brings together international researchers, provides insight into the current state of research, and critically examines current challenges such as the effects of authoritarianism, cultural change, and political polarization. By connecting interdisciplinary research with action-oriented implications for politics and society, this volume not only continues academic discourse but also formulates practical strategies for protecting religious freedom. It is a resource for researchers, policymakers, and civil society.