"Chevrefoil" is a Breton lai by the medieval poet Marie de France. The eleventh poem in the collection is called The Lais of Marie de France and its subject is an episode from the romance of Tristan and Iseult. The title means "honeysuckle," a symbol of love in the poem. "Chevrefoil" consists of 118 lines and survives in two manuscripts, Harley 978 or MS H, which contains all the Lais, and in Bibliothèque Nationale, nouv. acq. fr. 1104, or MS S.

Marie de France was a poet, possibly born in what is now France, who lived in England during the late 12th century. She lived and wrote at an unknown court, but she and her work were almost certainly known at the royal court of King Henry II of England. Virtually nothing is known of her life; both her given name and its geographical specification come from manuscripts containing her works. However, one written description of her work and popularity from her own era still exists. She is considered by scholars to be the first woman known to write francophone verse.