Sergei Mikhailovitch Eisenstein (in russo: Сергей Михайлович Эйзенштейн, [sʲɪrˈɡʲej mʲɪˈxajləvʲɪtɕ ɪjzʲɪnˈʂtʲejn]; 22 de januario1896 in Riga, Lettonia (tunc parte del Imperio Russe) – 11 de februario1948 in Moscova, Union Sovietic) esseva un director sovietic de theatro e de film e un theorista de film. Su innovationes in le practica e theoria de montage fortemente influentiava le cinematographia contemporanee e subsequente. Ille es cosnoscite pro su films mute Cuirassato Potemkin (in russo: Броненосец Потёмкин: Bronenosets Potyomkin; 1925) e Octobre (in russo: Октябрь: Oktyabr; 1928) e pro le films historic Alexandro Nevski (in russo: Александр Невский: Aleksandr Nevski; 1938) e Ivan le Terrible (in russo: Иван Грозный: Ivan Grozny; 1944, 1958)