Marjorie Boulton (born 7 May 1924) is a British author and poet writing in both English and Esperanto. 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 a well-known writer in Esperanto. Boulton is currently a president of two Esperanto organisations, Kat-amikaro and ODES.
Author of Zamenhof: Creator of Esperanto — a biography of L. L. Zamenhof published in 1960 by Routledge & Kegan Paul of London — she also wrote a widely used series of introductory texts on literary studies: The Anatomy of Poetry (1953), The Anatomy of Prose (1954), The Anatomy of Drama (1960), The Anatomy of Language (1968), The Anatomy of the Novel (1975) and The Anatomy of Literary Studies (1980). Her first book was Preliminaries: Poems (1949). Later books of poetry, as well as short story collections, were in Esperanto, which she learnt in 1949. She wrote as well Saying What We Mean (1959), Words in Real Life (1965) and Reading in Real Life (1971).