Onissim Borisovich Goldovsky (January 6, 1865 – September 7, 1922) was a Russian attorney, political philosopher and activist, author, and champion of Jewish causes. A so-called "Westerner" influenced by ideas of the French enlightenment, he was one of the founders of the Kadet party and advocated for a constitutional democracy for Russia. Married to the author Rashel Khin, he fathered three children with the violinist Lea Luboshutz, among them the opera impresario Boris Goldovsky.