Leonid Vladimirovich Kharitonov was a Soviet and Russian actor. He played in the films Private Ivan, Ivan Brovkin on the State Farm and Street Full of Surprises. Honored Artist of the RSFSR (1972).
Leonid Borisovich Krasin was a Russian Soviet politician, engineer, social entrepreneur, Bolshevik revolutionary politician and a Soviet diplomat. In 1924 he became the first Soviet ambassador to France. A year later, he left Paris to become ambassador to London, where he remained until his death. He was an early and close associate of Vladimir Lenin and his financier and the first finance wizard of the Communist Party.
Leonid Viktorovich Krushinsky was a Soviet and Russian biologist who specialized in the experimental study of animal behaviour at Moscow State University. The Krushinksy-Molodkina strain of rat susceptible to seizures caused by loud sounds was produced in his laboratory in the 1950s and is named after him and his student Ludmila Molodkina.
Leonid Borisovich Lazebnik is a Russian physician, Doctor of Medical Sciences, Professor at the Moscow State University of Medicine and Dentistry, President of the Gastroenterology Scientific Society of Russia.
Laureate of the 1999 Moscow Government Prize and 2000 Myasnikov Russian Academy of Medical Sciences Prize.
Leonid Maksimovich Leonov was a Soviet novelist and playwright of socialist realism. His works have been compared with Dostoevsky's deep psychological torment.