Mary M. Cohen (pen name, Coralie; February 26, 1854 – July 2, 1911) was an American social economist, journalist, belletrist, educator, communal worker, and proto-feminist of the long nineteenth century.

[2] Mary attended Miss Ann Dickson's private school in Philadelphia until she was fourteen years old, where she learned French, English, Latin, and sketching.

She edited sketches of celebrated men and women for publications; handled general literature in prose and in poetry, and questions belonging to the sphere of Judaism with equal ability; she contributed articles on the status and important roles assumed by Hebrews and Hebrew women, besides stories and reviews to Jewish, secular, and Christian religious journals of various cities.

Among these writings, were "Orthodox and Reform Jews;" "The Synagogue and the Jewess;" a poem in honor of Sir Moses Montefiore; "The Influence of Faith;" "Hebrew Women;" "Jewish Working Girls ;" studies of Robert Browning's poems, among them "Rabbi Ben Ezra," "Saul," and "Jochanan Ha Kadosh" (the Holy); "Miss Hattie;" "A Book That Has Helped Me," being a review of "The Story of Avis", by Elizabeth Stuart Phelps Ward; and a paper on Emma Lazarus's writings.

Cohen served as the president of the Browning Club of Philadelphia, of which she was the founder,[4] as the corresponding secretary of the Jewish Publication Society of America, as a superintendent of the Southern Hebrew Sunday-school, as president of the society under whose direction the schools are conducted, as a member of some of the lending literary and art clubs of Philadelphia, such as the Contemporary Club, the Fairmount Park Association, and as a member of the board of directors of the Pennsylvania Museum and School of Industrial Art.

Dr. H. L. Wayland, one of the directors of the American Social Science Association, to present to that organization a paper on "Hebrew Charities".

The paper was read by its author before the convention held in Saratoga Springs, New York, September 12, 1884, was favorably received, discussed and published.