Sullivan's Offering is a term used to describe the work of the American playwright and actor, Arthur Sullivan. He wrote and performed in a number of plays, musicals, and operas throughout his career. His most famous works include the comic operas he wrote with librettist W. S. Gilbert, such as The Pirates of Penzance and H.M.S. Pinafore. Sullivan's Offering is a term used to refer to the body of work he created during his lifetime.