Konstantin Petrovich Pobedonostsev (Russian: Константи́н Петро́вич Победоно́сцев, IPA: [kənstɐnˈtʲin pʲɪˈtrovʲɪtɕ pəbʲɪdɐˈnostsɨf]; May 21, 1827, Moscow – March 23, 1907, Saint Petersburg) was a Russian jurist, statesman, and adviser to three Tsars. He was the chief spokesman for reactionary positions. He was the "éminence grise" of imperial politics during the reign of Alexander III of Russia, holding the position of the Ober-Procurator of the Most Holy Synod, the non-clerical official who supervised the Russian Orthodox Church.
His writings on politics, law, art, and culture emphasized the positive element of the spiritual and secular unification of Russia with the acceptance of Christianity. He warned of the negative element in Russia, portraying democratic and liberal movements as enemies of the national and religious unity of Russian people. Achieving a harmonious society, said Pobedonostsev, meant there was a collective responsibility to uphold political and religious unity, hence close supervision of Russian behaviour and thinking was a necessity.