Moshe Dluznowsky (Dunow) (Polish: Mojżesz "Moszek" Dłużnowski, Yiddish: משה דלושנאָװסקי, 1903–1977), was a Polish-born journalist, publicist, writer, dramatist, and editor of the journal Tomashover Vokhenblat.
His father Mordka Henokh Dłużnowski (1870–1934) was a small shopkeeper in Tomaszów, who with his wife Estera née Piyus (1870-1942?)
He finished Itzhak Milter's primary Jewish school (cheder), which was a hot-bed for many writers and journalists who wrote their literary works in Yiddish.
Moshe Dluznowsky composed numerous novels, essays and theatrical works written in Yiddish.
Moshe Dluznowsky's novels, essays, and art criticism appeared regularly in the New York Yiddish newspaper, The Forward, as well as in periodicals and journals in Paris, Buenos Aires, Mexico City, and Israel.
The most known Dluznowsky's drama Der ajnzame szif ("The Lonesome Ship") was successfully produced in New York, Los Angeles (by Maurice Schwartz) and in Ida Kaminska's Jewish Theater in Warsaw (Polish first performance: June 17, 1961).