Brainin Simon (15.07.1854, Riga - 31.03.1911, New York) - physician and public figure.

Simon Brainin graduated from a gymnasium in Riga, studied medicine at the universities of Derpt and Berlin. He was a doctor of the Riga Jewish community and was one of the leaders of this community, which was the last of the independent Jewish associations (‘kagals’) in Russia until it was abolished by the government. In 1885 Simon Brainin was a member of the government committee for the study of Jewish rights in Riga, in 1892 - a delegate to the conference of rabbis in St. Petersburg, a member of the Society for the Dissemination of Culture among the Jews of Russia.

In 1895 Simon Brainin emigrated to the United States and was a practicing physician in New York. He was a member of the County Medical Society, a member of the New York Historical Society, the German Medical Society, and the Harlem Medical Association. Simon Brainin published several popular science books on medicine, of which the most famous in his day was Orah la-Hayim, a book on the mastery of one's own body.

Selected work : Orah la-Hayim. Vienna, 1883. (In Hebrew); Der Aerztliche Führer. R., 1885; Ueber Kefyr. Vienna, 1886.