Marjorie Boulton (born 7 May 1924) is a British author and poet writing in both English and Esperanto. Author of Zamenhof: Creator of Esperanto— a biography of L. L. Zamenhof published in 1960 by Routledge & Kegan Paul of London — she also wrote The Anatomy of Poetry, The Anatomy of Prose, The Anatomy of Drama, The Anatomy of the Novel and The Anatomy of Language.
Marjorie Boulton taught English literature in teacher training and (from 1962 to 1970) as a college principal for 24 years before turning to full-time research and writing. She is author of many books, and is also a well known writer in Esperanto. Boulton is currently a president of two Esperanto organisations, Kat-amikaroand ODES