Juliet R. V. Barker (born 1958) is a British historian, specialising in the Middle Ages and literary biography. She is the author of a number of well-regarded works on the Brontës, William Wordsworth, and medieval tournaments. From 1983 to 1989 she was the curator and librarian of the Brontë Parsonage Museum.
Barker was educated at Bradford Girls' Grammar School and St Anne's College, Oxford, where she gained her doctorate in medieval history. In 1999 she was awarded an honorary Doctorate of Letters by the University of Bradford. She is a Fellow of the Royal Society of Literature.