Lady Lilith is an oil painting by Dante Gabriel Rossetti first painted in 1866–68 using his mistress Fanny Cornforth as the model, then altered in 1872–73 to show the face of Alexa Wilding. The subject is Lilith, who was, according to ancient Judaic myth, "the first wife of Adam" and is associated with the seduction of men and the murder of children. She is shown as a "powerful and evil temptress" and as "an iconic, Amazon-like female with long, flowing hair."
Rossetti overpainted Cornforth's face, perhaps at the suggestion of his client, shipping magnate Frederick Richards Leyland, who displayed the painting in his drawing room with five other Rossetti "stunners." After Leyland's death, the painting was purchased by Samuel Bancroft and Bancroft's estate donated it in 1935 to the Delaware Art Museum where it is now displayed.