Wonder is a key emotion to Shakespeare’s work as a whole, from first to last. Three principal sites of the evocation of wonder are discussed: in narrative, in character, and in language. Discussion of the first focuses on Shakespeare’s career-long interest in romance narratives of marvel, drawing on both ancient and popular traditions. These traditions inform Shakespeare’s writing from The Comedy of Errors through the last plays. In them marvellous events – especially involving recoveries and reunions – reveal a world unexpected in its amplitude, larger than human knowledge can easily understand. Audiences are encouraged to share this perception of the world-opening possibilities of poetry. Wonder experienced by characters provides an opportunity for audiences to examine closely the mechanics of the affect, and the attempts of persons to negotiate and emerge from it into knowledge. Wonder in language touches on Shakespeare’s characteristic extremity of rhetorical style, particularly his use of figures such as paradox, hyperbole, and catachresis. Altogether, this commitment to wonder reveals Shakespeare as a poet of an unclosed universe – one ever rich in possibility and the unexpected.