In this article the author makes an argument for evangelical worship as a form of public theology. The analysis proceeds in three parts. The first section examines depictions of evangelicals in American public media in order to show how evangelicalism and worship are closely linked in society’s imagination. The second section draws on debates between David Tracy and George Lindbeck to explain evangelicals’ distinctive approach to worship and witness. The third section presents a case study of a Sunday service at an evangelical megachurch, and suggests that increased attention to congregational worship practices can mitigate tensions between populist and academic understandings of public theology.