Osip Dymov was the pseudonym for Yosif (Osip) Isidorovich Perelman (1878–1959), a Russian writer. His brother was science writer Yakov Perelman.
Dymov's father came from Germany and died when Yosif was quite young. In 1902, Dymov graduated from the St Petersburg State Forestry Engineering Academy and emigrated to the United States in 1913.
Dymov is known for his contributions to Yiddish theatre, including plays such as Bronx Express (1919) and Yoshke Musikant.