Boris Anisimovich Kušner (1888–1937) was a Russian poet, critic and political activist. He was a publicist for the Cubo-Futurists: In 1917 he wrote a manifesto, "Democratic Art", which called for a guarantee for all art movements to have a right to exist and the creation of an environment whereby fresh forces and views would be encouraged so that all works of art would be available to all people. He was a victim of the Stalinist purges.