Lamia is a narrative poem written by the English poet John Keats, which first appeared in the volume Lamia, Isabella, the Eve of St Agnes and Other Poems, published in July 1820.

The poem tells how the god Hermes hears of a nymph who is more beautiful than all. Hermes, searching for the nymph, instead comes across Lamia, trapped in the form of a serpent.

John Keats was an English Romantic poet who lived from 1795 to 1821. He is widely regarded as one of the most important and influential poets in the Romantic literary movement. Keats is known for his lyric poetry, which is characterized by its sensual and vivid imagery, rich language, and exploration of themes such as beauty, nature, love, and the transience of life.

Tragically, John Keats' life was cut short at the age of 25 due to tuberculosis. Despite his relatively short life and limited output, his work has had a lasting impact on English literature and continues to be studied and admired for its poetic excellence and exploration of profound human experiences.