Prince Sergey Dmitriyevich Urusov (Russian: Серге́й Дми́триевич Уру́сов; 1862–1937) was a Russian Prince, politician, and thrice-elected Marshal of the Kaluga Nobility. He was appointed in May 1903. He served in the government of Czarist Russia, in the government that was set up after the February 1917 revolution, and in the Soviet government. He has been described as “a sincere liberal” and “severe critic of autocracy” who believed in “the inviolability of human rights and freedoms” and “the rule of law.”