Idyll XI, otherwise known as Bucolic poem 11, was written by Theocritus in dactylic hexameter. Its main character, the Cyclops Polyphemus, has appeared in other works of literature such as Homer's Odyssey, and Theocritus' Idyll VI.

Theocritus was a Greek poet from Sicily, Magna Graecia, and the creator of Ancient Greek pastoral poetry.