Hope is the leitmotiv of Jürgen Moltmann’s theology. Not merely one aspect of his project, hope is the whole of it, the supreme doctrine interpenetrating all others. Indeed, hope is his method. The following study is entitled ‘Theology as Hope’, a play on words intended to convey two meanings, simultaneously. First, the three-word dictum correctly labels Moltmann’s entire project. While his theology is correctly regarded as eschatological, there is a more specific, identifiable centre: it is a pronouncement of hope from beginning to end. The second meaning of the title, which is clarified and specified by the subtitle, describes the content of the present study. In the pages following, Moltmann’s theology is explored from the angle of his doctrine of hope. The present exploration seeks to show the nature, composition and development of Moltmann’s hope through two pursuits: one primary, one secondary. The primary method, pursued throughout, is a chronological exploration of Moltmann’s doctrine of hope, as the distinctive doctrine of his theology. The secondary method, pursued primarily in Part II, investigates the implications, or effect, his doctrine of hope has on his theology, as he develops it. Part I establishes Moltmann’s doctrine of hope as grounded in God’s faithfulness in the cross and resurrection. Part II investigates major doctrines in his programme in light of this ground. This procedure offers at least two advantages: (1) it allows a, construction and definition of his doctrine of hope to be formed without a composition of hope being imposed from the outside; (2) it allows the reader to follow Moltmann’s theology in the order in which he wrote, instead of arbitrarily assigning an order to the topics.