Morris Winchevsky (Yiddish: מאָריס װינטשעװסקי; born as Leopold Benzion Novokhovitch; August 9 1856–March 18 1932), also known as Ben Netz, was a prominent Jewish socialist leader in London and the United States in the late 19th century.

Born in Jonava, Lithuania, in 1856,[1] Winchevsky later moved to London where, already a well known socialist, he founded the Der Poylisher Yidl (The Little Polish Jew), one of the first Yiddish daily socialist newspapers; and the Arbeter Fraynd, the first Yiddish-language anarchist newspaper.

Winchevsky wrote parodies directed to Jews of the Pale of Settlement in hopes of creating class consciousness.

Winchevsky died on March 18, 1932, and is buried in the Workmen's Circle section of Mount Carmel Cemetery, alongside other Jewish socialist leaders.

Notably, he was a member of the Proletarian Poets, an association formed with Winchevsky, Morris Rosenfeld, David Edelstadt, and Joseph Bovshover.