Dr. Marjorie Boulton (1924-2017) was an author and poet, published in both English and Esperanto. She wrote short plays and short stories throughout her lifetime, and was the author of Zamenhof: Creator of Esperanto, a biography of L. L. Zamenhof.

She is perhaps best known as the author of a series of critical guides, The Anatomy of… series, that have been published around the world. She lived in Oxford and was president of the international Esperanto organisation Kat-amikaro, and a member of the Esperanto Academy.