The term lyric conjures many different things: musical language, emotional intensity, the qualities of ritual or prayer, introspection, and interiority. It has also come to designate a wide variety of spoken, sung, and printed poetic forms. This chapter explores Shelley’s relations to these ideas and forms through his reading and his writing. It also places Shelley’s writing in the context of modern and contemporary lyric theory, which investigates and expands the meaning of the term lyric and puts useful pressure on assumptions we might have about poetic voice, subjects, or speakers. In bringing these various contexts together, I suggest that none of them can wholly determine Shelleyan lyric, which is by turns formally constrained and politically engaged, intimate and impersonal.