Dorothy Mae Ann Wordsworth was an English poet and diarist. She was the sister of the Romantic poet William Wordsworth, and the two were close for all of their lives. Dorothy Wordsworth did not set out to be an author, and her writings comprise a series of letters, diary entries, and short stories.

She also edited much of William’s work. She was one of two people he attributed to the development of his intellect. Without her he would never have achieved such poetic heights.