This essay is an attempt to write Matthew Arnold into the narrative of Anglican thought in the nineteenth century. Overviews of general religious thought in the Victorian era give an appropriate nod to Arnold, but the institutional histories of the Anglican Church have not acknowledged his contributions to defining Anglican identity. In many ways, this is quite understandable: Arnold broke with much of traditional Christian doctrine. But, and just as significant, he never left the Church of England, and in fact he was an apologist for the Church at a time when even part of the clergy seemed alienated. He sought to expand the parameters of permitted religious opinion to include the largest number of English Christians in the warm embrace of the national Church. The essay concludes that the religious reflections of Arnold must be anchored in an Anglican context.