Isidor Markovich Annensky (Russian: Исидор Маркович Анненский; 13 March 1906 – 2 May 1977) was a Soviet screenwriter and film director.
He then worked as a stage actor and director in Odessa, Arkhangelsk, Baku, and Moscow, before enrolling in the Russian Institute of Theatre Arts, where he stayed until 1934, and in the VGIK, graduating in 1936.
Annensky debuted at Belarusfilm with the medium-length Anton Chekhov adaptation The Bear (1938), which brought attention to him as a director.
He worked in a variety of genres; adventure movies such as the pilot drama The Fifth Ocean (1940), melodrama Ekaterina Voronina (1957), musical A Sailor from the Comet (1958), youth comedy The First Trolleybus (1964), and revolutionary chronicle Tatyana's Day (1967).
He regularly adapted and popularized Russian classical literature well into the 1970s, ending his career with Aleksandr Ostrovsky’s comedy Talents and Admirers (1973).