Helen Sherman Griffith was an American author. An Iowan, she was the "prolific" author of the Letty Grey series of children's books, published by Penn Publishing Company of Philadelphia. She was the daughter of Hoyt Sherman and Sara Sherman, who was born and raised in Des Moines, Iowa at Hoyt Sherman Place. Helen's bedroom has been restored and is part of the Hoyt Sherman Place house museum.

Helen Simonson is an English author who lives in the United States.

Helen Steiner Rice was an American writer of both inspirational and Christian poetry.

Helen M. Tiffin is an adjunct professor of English at the University of Wollongong, Australia, and an influential writer in post-colonial theory and literary studies.

Helen Hennessy Vendler is an American literary critic and is Porter University Professor Emerita at Harvard University.

Helen Jane Waddell was an Irish poet, scholar, theological novelist, translator, publisher's reader and playwright. She was a recipient of the Benson Medal. A prize-winning biography of her by the Benedictine nun Dame Felicitas Corrigan was published in 1986, which won the James Tait Black Award.

Helen Walsh is an English novelist and film director. Her novels include Brass, which won a Betty Trask Award, and Once Upon a Time in England, which won a Somerset Maugham Award.

Helen Zimmern was a naturalised British writer and translator born in Germany. She was instrumental in making European culture more accessible in English.

Helena Petrovna Blavatsky, often known as Madame Blavatsky, was a Russian mystic and author who co-founded the Theosophical Society in 1875. She gained an international following as the leading theoretician of Theosophy.

Helena Boguszewska, née Radlińska (1883–1978) was a Polish writer, columnist and a social activist.