This book explores the notion of interreligious friendship. Friendship is one of the outcomes as well as conditions for advancing interfaith relations. However, for friendship to advance, there must be legitimation from within and a theory of how interreligious relations can be justified from the resources of different faith traditions. The present volume explores these very issues, seeking to develop a robust theory of interreligious friendship, from the resources of each of the participating traditions. It also seeks to feature particular individual cases as models and precedents for such relations. In particular, the friendship of Gandhi and Charlie Andrews, his closest personal friend, emerges as the model for the project.