Mikhail Markovich Borodin (Михаи́л Бороди́н) (July 9, 1884, - May 29, 1951) was the alias of Mikhail Gruzenberg. He was a Comintern agent. Borodin joined the Bolshevik party in Russia in 1903. He worked in Mexico and later in China with the Kuomintang and the Communist Party of China in the 1920s and 1930s.