Ayn Rand, original name Alissa Zinovievna Rosenbaum, (born February 2, 1905, St. Petersburg, Russia—died March 6, 1982, New York, New York, U.S.), Russian-born American writer whose commercially successful novels promoting individualism and laissez-faire capitalism were influential among conservatives and libertarians and popular among generations of young people in the United States from the mid-20th century.

Early life and career
Her father, Zinovy Rosenbaum, was a prosperous pharmacist. After being tutored at home, Alissa Rosenbaum, the eldest of three children, was enrolled in a progressive school, where she excelled academically but was socially isolated. Following the Russian Revolution of 1917, her father’s shop was confiscated by communist authorities, an event she deeply resented. As a student at Leningrad State University, she studied history and became acquainted with the works of Plato and Aristotle. After graduating in 1924, she enrolled in the State Institute for Cinematography, hoping to become a screenwriter.

The arrival of a letter from cousins in Chicago gave her an opportunity to leave the country on the pretext of gaining expertise that she could apply in the Soviet film industry. Upon her arrival in the United States in 1926, she changed her name to Ayn Rand. (The first name, which rhymes with “pine,” was inspired by the name of a Finnish writer, whom she never identified, and the surname she described as an abbreviation of Rosenbaum.) After six months in Chicago she moved to Hollywood, where a fortuitous encounter with the producer Cecil B. DeMille led to work as a movie extra and eventually to a job as a screenwriter. In 1929 she married the actor Frank O’Connor. Soon hired as a filing clerk in the wardrobe department of RKO Radio Pictures, Inc., she rose to head of the department within a year, meanwhile writing stories, plays, and film scenarios in her spare time. She became an American citizen in 1931.