Anabaptist theology is the expression and communication of theological convictions that have sustained the ordinary life of faith communities within the Anabaptist tradition of Christianity. Alongside this ordinary Anabaptist theology, a more formal, ‘academic’ version has developed since at least the eighteenth century. In this respect, this article will first address some methodological issues and then present a historical overview of Anabaptist theology, from the emergence of Anabaptism in the Reformation era to recent global developments. The article concludes with an examination of some key theological issues within the Anabaptist theological tradition, namely, the status of confessional documents, biblical interpretation, Christology, discipleship, salvation, and ecclesiology.