Jane Williams (née Jane Cleveland; 21 January 1798 – 8 November 1884) was a British woman best known for her association with the Romantic poet Percy Bysshe Shelley. Jane was raised in England and India, before marrying a naval officer and settling in London. She soon left him for another military officer, Edward Ellerker Williams. After Edward and she left England for Italy, they became acquainted with Percy and Mary Shelley.