Ilya Nikolaevich Golenishchev-Kutuzov was a Soviet philologist, poet, and translator. He was an expert on Romanic and Slavic philology, and comparative literature. He authored works on Dante Alighieri and the Renaissance literature.
Ilya Gruzinov was professor of anatomy and physiology at Imperial Moscow University. He discovered in 1812 that the actual source for a deep and pleasant vocal sound is the membrane, which is a posterior wall of trachea and bronchi.
Ilya Arnoldovich Ilf, was a popular Soviet journalist and writer of Jewish origin who usually worked in collaboration with Yevgeni Petrov during the 1920s and 1930s. Their duo was known simply as Ilf and Petrov. Together they published two popular comedy novels The Twelve Chairs (1928) and The Little Golden Calf (1931), as well as a satirical book Odnoetazhnaya Amerika that documented their journey through the United States between 1935 and 1936.
Ilya Illych Kazas b.11(23) March 1832 Armyansk – d.14(27) January 1912 Yevpatoria, was an outstanding educator, teacher and poet among the Crimean Karaites. Despite coming from a simple family background, he became one of the most prominent members of Crimea's Karaim community in his era. Ilya Kazas was a highly educated man who knew 11 languages, including 4 ancients.
Ilya Valeryevich Kormiltsev was a Russian poet, translator, and publisher. Kormiltsev is most famous for working during the 1980s and the 1990s as a songwriter in Nautilus Pompilius, one of the most popular rock bands in the Soviet Union and, later, Russia. He was also a prominent literary translator and publisher. Since 1997, he translated into Russian many important pieces of modern prose, such as Chuck Palahniuk's Fight Club, or Irvine Welsh's Trainspotting. In 2003, he established Ultra.Kultura publishing house, which immediately gained a scandalous reputation and was closed by the authorities in 2007. Through its brief history, Ultra.Kultura published numerous counter-culture books in a wide range from ultra-right to radical left authors.
Ilya Mikhailovich Lifshitz was a leading Soviet theoretical physicist, brother of Evgeny Lifshitz. He is known for his works in solid-state physics, electron theory of metals, disordered systems, and the theory of polymers.